e2e accelerations

npm audit fix
Merge pull request #5542 from mempool/dependabot/npm_and_yarn/frontend/esbuild-0.24.0
2024-09-23 17:30:16 +08:00 · 2024-09-23 14:15:00 +08:00 · 2024-09-23 13:44:14 +08:00 · 2024-09-23 12:57:07 +08:00 · 2024-09-23 02:09:59 +00:00 · 2024-09-22 18:06:55 +00:00
183 changed files with 16162 additions and 11046 deletions
--- a/12
+++ b/12
@@ -1,5 +1,5 @@
 The Mempool Open Source Project®
-Copyright (c) 2019-2023 Mempool Space K.K. and other shadowy super-coders
+Copyright (c) 2019-2024 Mempool Space K.K. and other shadowy super-coders

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License as published by the Free
@@ -12,10 +12,12 @@ or any other contributor to The Mempool Open Source Project.

 The Mempool Open Source Project®, Mempool Accelerator™, Mempool Enterprise®, 
 Mempool Liquidity™, mempool.space®, Be your own explorer™, Explore the full 
-Bitcoin ecosystem™, Mempool Goggles™, the mempool Logo, the mempool Square logo, 
-the mempool Blocks logo, the mempool Blocks 3 | 2 logo, the mempool.space Vertical 
-Logo, and the mempool.space Horizontal logo are registered trademarks or trademarks 
-of Mempool Space K.K in Japan, the United States, and/or other countries.
+Bitcoin ecosystem™, Mempool Goggles™, the mempool Logo, the mempool Square Logo, 
+the mempool block visualization Logo, the mempool Blocks Logo, the mempool 
+transaction Logo, the mempool Blocks 3 | 2 Logo, the mempool research Logo, 
+the mempool.space Vertical Logo, and the mempool.space Horizontal Logo are 
+registered trademarks or trademarks of Mempool Space K.K in Japan, 
+the United States, and/or other countries.

 See our full Trademark Policy and Guidelines for more details, published on 
 <https://mempool.space/trademark-policy>.
--- a/backend/README.md
+++ b/backend/README.md
@@ -77,7 +77,7 @@ Query OK, 0 rows affected (0.00 sec)

 #### Build

-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer_

 _The build process requires [Rust](https://www.rust-lang.org/tools/install) to be installed._

--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -1,21 +1,22 @@
 {
  "name": "mempool-backend",
-  "version": "3.0.0-dev",
+  "version": "3.1.0-dev",
  "lockfileVersion": 2,
  "requires": true,
  "packages": {
    "": {
      "name": "mempool-backend",
-      "version": "3.0.0-dev",
+      "version": "3.1.0-dev",
      "hasInstallScript": true,
      "license": "GNU Affero General Public License v3.0",
      "dependencies": {
+        "@babel/core": "^7.25.2",
        "@mempool/electrum-client": "1.1.9",
        "@types/node": "^18.15.3",
-        "axios": "~1.7.2",
+        "axios": "1.7.2",
        "bitcoinjs-lib": "~6.1.3",
        "crypto-js": "~4.2.0",
-        "express": "~4.19.2",
+        "express": "~4.21.0",
        "maxmind": "~4.3.11",
        "mysql2": "~3.11.0",
        "redis": "^4.7.0",
@@ -2280,6 +2281,7 @@
      "version": "1.7.2",
      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.2.tgz",
      "integrity": "sha512-2A8QhOMrbomlDuiLeK9XibIBzuHeRcqqNOHp0Cyp5EoJ1IFDh+XZH3A6BkXtv0K4gFGCI0Y4BM7B1wOEi0Rmgw==",
+      "license": "MIT",
      "dependencies": {
        "follow-redirects": "^1.15.6",
        "form-data": "^4.0.0",
@@ -2488,9 +2490,9 @@
      }
    },
    "node_modules/body-parser": {
-      "version": "1.20.2",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
-      "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
+      "version": "1.20.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.3.tgz",
+      "integrity": "sha512-7rAxByjUMqQ3/bHJy7D6OGXvx/MMc4IqBn/X0fcM1QUcAItpZrBEYhWGem+tzXH90c+G01ypMcYJBO9Y30203g==",
      "dependencies": {
        "bytes": "3.1.2",
        "content-type": "~1.0.5",
@@ -2500,7 +2502,7 @@
        "http-errors": "2.0.0",
        "iconv-lite": "0.4.24",
        "on-finished": "2.4.1",
-        "qs": "6.11.0",
+        "qs": "6.13.0",
        "raw-body": "2.5.2",
        "type-is": "~1.6.18",
        "unpipe": "1.0.0"
@@ -3029,9 +3031,9 @@
      "dev": true
    },
    "node_modules/encodeurl": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
-      "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
      "engines": {
        "node": ">= 0.8"
      }
@@ -3459,36 +3461,36 @@
      }
    },
    "node_modules/express": {
-      "version": "4.19.2",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.19.2.tgz",
-      "integrity": "sha512-5T6nhjsT+EOMzuck8JjBHARTHfMht0POzlA60WV2pMD3gyXw2LZnZ+ueGdNxG+0calOJcWKbpFcuzLZ91YWq9Q==",
+      "version": "4.21.0",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.21.0.tgz",
+      "integrity": "sha512-VqcNGcj/Id5ZT1LZ/cfihi3ttTn+NJmkli2eZADigjq29qTlWi/hAQ43t/VLPq8+UX06FCEx3ByOYet6ZFblng==",
      "dependencies": {
        "accepts": "~1.3.8",
        "array-flatten": "1.1.1",
-        "body-parser": "1.20.2",
+        "body-parser": "1.20.3",
        "content-disposition": "0.5.4",
        "content-type": "~1.0.4",
        "cookie": "0.6.0",
        "cookie-signature": "1.0.6",
        "debug": "2.6.9",
        "depd": "2.0.0",
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "etag": "~1.8.1",
-        "finalhandler": "1.2.0",
+        "finalhandler": "1.3.1",
        "fresh": "0.5.2",
        "http-errors": "2.0.0",
-        "merge-descriptors": "1.0.1",
+        "merge-descriptors": "1.0.3",
        "methods": "~1.1.2",
        "on-finished": "2.4.1",
        "parseurl": "~1.3.3",
-        "path-to-regexp": "0.1.7",
+        "path-to-regexp": "0.1.10",
        "proxy-addr": "~2.0.7",
-        "qs": "6.11.0",
+        "qs": "6.13.0",
        "range-parser": "~1.2.1",
        "safe-buffer": "5.2.1",
-        "send": "0.18.0",
-        "serve-static": "1.15.0",
+        "send": "0.19.0",
+        "serve-static": "1.16.2",
        "setprototypeof": "1.2.0",
        "statuses": "2.0.1",
        "type-is": "~1.6.18",
@@ -3601,12 +3603,12 @@
      }
    },
    "node_modules/finalhandler": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.2.0.tgz",
-      "integrity": "sha512-5uXcUVftlQMFnWC9qu/svkWv3GTd2PfUhK/3PLkYNAe7FbqJMt3515HaxE6eRL74GdsriiwujiawdaB1BpEISg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.3.1.tgz",
+      "integrity": "sha512-6BN9trH7bp3qvnrRyzsBz+g3lZxTNZTbVO2EV1CS0WIcDbawYVdYvGflME/9QP0h0pYlCDBCTjYa9nZzMDpyxQ==",
      "dependencies": {
        "debug": "2.6.9",
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "on-finished": "2.4.1",
        "parseurl": "~1.3.3",
@@ -6050,9 +6052,12 @@
      }
    },
    "node_modules/merge-descriptors": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w=="
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.3.tgz",
+      "integrity": "sha512-gaNvAS7TZ897/rVaZ0nMtAyxNyi/pdbjbAwUpFQpN70GqnVfOiXpeUUMKRBmzXaSQ8DdTX4/0ms62r2K+hE6mQ==",
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
    },
    "node_modules/merge-stream": {
      "version": "2.0.0",
@@ -6266,9 +6271,12 @@
      }
    },
    "node_modules/object-inspect": {
-      "version": "1.13.1",
-      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
-      "integrity": "sha512-5qoj1RUiKOMsCCNLV1CBiPYE10sziTsnmNxkAI/rZhiD63CF7IqdFGC/XzjWjpSgLf0LxXX3bDFIh0E18f6UhQ==",
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.2.tgz",
+      "integrity": "sha512-IRZSRuzJiynemAXPYtPe5BoI/RESNYR7TYm50MC5Mqbd3Jmw5y790sErYw3V6SryFJD64b74qQQs9wn5Bg/k3g==",
+      "engines": {
+        "node": ">= 0.4"
+      },
      "funding": {
        "url": "https://github.com/sponsors/ljharb"
      }
@@ -6436,9 +6444,9 @@
      "dev": true
    },
    "node_modules/path-to-regexp": {
-      "version": "0.1.7",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
-      "integrity": "sha512-5DFkuoqlv1uYQKxy8omFBeJPQcdoE07Kv2sferDCrAq1ohOU+MSDswDIbnx3YAM60qIOnYa53wBhXW0EbMonrQ=="
+      "version": "0.1.10",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.10.tgz",
+      "integrity": "sha512-7lf7qcQidTku0Gu3YDPc8DJ1q7OOucfa/BSsIwjuh56VU7katFvuM8hULfkwB3Fns/rsVF7PwPKVw1sl5KQS9w=="
    },
    "node_modules/path-type": {
      "version": "4.0.0",
@@ -6646,11 +6654,11 @@
      ]
    },
    "node_modules/qs": {
-      "version": "6.11.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.0.tgz",
-      "integrity": "sha512-MvjoMCJwEarSbUYk5O+nmoSzSutSsTwF85zcHPQ9OrlFoZOYIjaqBAJIqIXjptyD5vThxGq52Xu/MaJzRkIk4Q==",
+      "version": "6.13.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.13.0.tgz",
+      "integrity": "sha512-+38qI9SOr8tfZ4QmJNplMUxqjbe7LKvvZgWdExBOmd+egZTtjLB67Gu0HRX3u/XOq7UU2Nx6nsjvS16Z9uwfpg==",
      "dependencies": {
-        "side-channel": "^1.0.4"
+        "side-channel": "^1.0.6"
      },
      "engines": {
        "node": ">=0.6"
@@ -6871,9 +6879,9 @@
      }
    },
    "node_modules/send": {
-      "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.18.0.tgz",
-      "integrity": "sha512-qqWzuOjSFOuqPjFe4NOsMLafToQQwBSOEpS+FwEt3A2V3vKubTquT3vmLTQpFgMXp8AlFWFuP1qKaJZOtPpVXg==",
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.19.0.tgz",
+      "integrity": "sha512-dW41u5VfLXu8SJh5bwRmyYUbAoSB3c9uQh6L8h/KtsFREPWpbX1lrljJo186Jc4nmci/sGUZ9a0a0J2zgfq2hw==",
      "dependencies": {
        "debug": "2.6.9",
        "depd": "2.0.0",
@@ -6906,6 +6914,14 @@
      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
    },
+    "node_modules/send/node_modules/encodeurl": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
    "node_modules/send/node_modules/ms": {
      "version": "2.1.3",
      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -6917,14 +6933,14 @@
      "integrity": "sha512-hr3Wtp/GZIc/6DAGPDcV4/9WoZhjrkXsi5B/07QgX8tsdc6ilr7BFM6PM6rbdAX1kFSDYeZGLipIZZKyQP0O5Q=="
    },
    "node_modules/serve-static": {
-      "version": "1.15.0",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.15.0.tgz",
-      "integrity": "sha512-XGuRDNjXUijsUL0vl6nSD7cwURuzEgglbOaFuZM9g3kwDXOWVTck0jLzjPzGD+TazWbboZYu52/9/XPdUgne9g==",
+      "version": "1.16.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.16.2.tgz",
+      "integrity": "sha512-VqpjJZKadQB/PEbEwvFdO43Ax5dFBZ2UECszz8bQ7pi7wt//PWe1P6MN7eCnjsatYtBT6EuiClbjSWP2WrIoTw==",
      "dependencies": {
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "parseurl": "~1.3.3",
-        "send": "0.18.0"
+        "send": "0.19.0"
      },
      "engines": {
        "node": ">= 0.8.0"
@@ -9603,9 +9619,9 @@
      }
    },
    "body-parser": {
-      "version": "1.20.2",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
-      "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
+      "version": "1.20.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.3.tgz",
+      "integrity": "sha512-7rAxByjUMqQ3/bHJy7D6OGXvx/MMc4IqBn/X0fcM1QUcAItpZrBEYhWGem+tzXH90c+G01ypMcYJBO9Y30203g==",
      "requires": {
        "bytes": "3.1.2",
        "content-type": "~1.0.5",
@@ -9615,7 +9631,7 @@
        "http-errors": "2.0.0",
        "iconv-lite": "0.4.24",
        "on-finished": "2.4.1",
-        "qs": "6.11.0",
+        "qs": "6.13.0",
        "raw-body": "2.5.2",
        "type-is": "~1.6.18",
        "unpipe": "1.0.0"
@@ -9996,9 +10012,9 @@
      "dev": true
    },
    "encodeurl": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
-      "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w=="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg=="
    },
    "error-ex": {
      "version": "1.3.2",
@@ -10303,36 +10319,36 @@
      }
    },
    "express": {
-      "version": "4.19.2",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.19.2.tgz",
-      "integrity": "sha512-5T6nhjsT+EOMzuck8JjBHARTHfMht0POzlA60WV2pMD3gyXw2LZnZ+ueGdNxG+0calOJcWKbpFcuzLZ91YWq9Q==",
+      "version": "4.21.0",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.21.0.tgz",
+      "integrity": "sha512-VqcNGcj/Id5ZT1LZ/cfihi3ttTn+NJmkli2eZADigjq29qTlWi/hAQ43t/VLPq8+UX06FCEx3ByOYet6ZFblng==",
      "requires": {
        "accepts": "~1.3.8",
        "array-flatten": "1.1.1",
-        "body-parser": "1.20.2",
+        "body-parser": "1.20.3",
        "content-disposition": "0.5.4",
        "content-type": "~1.0.4",
        "cookie": "0.6.0",
        "cookie-signature": "1.0.6",
        "debug": "2.6.9",
        "depd": "2.0.0",
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "etag": "~1.8.1",
-        "finalhandler": "1.2.0",
+        "finalhandler": "1.3.1",
        "fresh": "0.5.2",
        "http-errors": "2.0.0",
-        "merge-descriptors": "1.0.1",
+        "merge-descriptors": "1.0.3",
        "methods": "~1.1.2",
        "on-finished": "2.4.1",
        "parseurl": "~1.3.3",
-        "path-to-regexp": "0.1.7",
+        "path-to-regexp": "0.1.10",
        "proxy-addr": "~2.0.7",
-        "qs": "6.11.0",
+        "qs": "6.13.0",
        "range-parser": "~1.2.1",
        "safe-buffer": "5.2.1",
-        "send": "0.18.0",
-        "serve-static": "1.15.0",
+        "send": "0.19.0",
+        "serve-static": "1.16.2",
        "setprototypeof": "1.2.0",
        "statuses": "2.0.1",
        "type-is": "~1.6.18",
@@ -10434,12 +10450,12 @@
      }
    },
    "finalhandler": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.2.0.tgz",
-      "integrity": "sha512-5uXcUVftlQMFnWC9qu/svkWv3GTd2PfUhK/3PLkYNAe7FbqJMt3515HaxE6eRL74GdsriiwujiawdaB1BpEISg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.3.1.tgz",
+      "integrity": "sha512-6BN9trH7bp3qvnrRyzsBz+g3lZxTNZTbVO2EV1CS0WIcDbawYVdYvGflME/9QP0h0pYlCDBCTjYa9nZzMDpyxQ==",
      "requires": {
        "debug": "2.6.9",
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "on-finished": "2.4.1",
        "parseurl": "~1.3.3",
@@ -12236,9 +12252,9 @@
      "integrity": "sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ=="
    },
    "merge-descriptors": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w=="
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.3.tgz",
+      "integrity": "sha512-gaNvAS7TZ897/rVaZ0nMtAyxNyi/pdbjbAwUpFQpN70GqnVfOiXpeUUMKRBmzXaSQ8DdTX4/0ms62r2K+hE6mQ=="
    },
    "merge-stream": {
      "version": "2.0.0",
@@ -12401,9 +12417,9 @@
      }
    },
    "object-inspect": {
-      "version": "1.13.1",
-      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
-      "integrity": "sha512-5qoj1RUiKOMsCCNLV1CBiPYE10sziTsnmNxkAI/rZhiD63CF7IqdFGC/XzjWjpSgLf0LxXX3bDFIh0E18f6UhQ=="
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.2.tgz",
+      "integrity": "sha512-IRZSRuzJiynemAXPYtPe5BoI/RESNYR7TYm50MC5Mqbd3Jmw5y790sErYw3V6SryFJD64b74qQQs9wn5Bg/k3g=="
    },
    "on-finished": {
      "version": "2.4.1",
@@ -12520,9 +12536,9 @@
      "dev": true
    },
    "path-to-regexp": {
-      "version": "0.1.7",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
-      "integrity": "sha512-5DFkuoqlv1uYQKxy8omFBeJPQcdoE07Kv2sferDCrAq1ohOU+MSDswDIbnx3YAM60qIOnYa53wBhXW0EbMonrQ=="
+      "version": "0.1.10",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.10.tgz",
+      "integrity": "sha512-7lf7qcQidTku0Gu3YDPc8DJ1q7OOucfa/BSsIwjuh56VU7katFvuM8hULfkwB3Fns/rsVF7PwPKVw1sl5KQS9w=="
    },
    "path-type": {
      "version": "4.0.0",
@@ -12664,11 +12680,11 @@
      "dev": true
    },
    "qs": {
-      "version": "6.11.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.0.tgz",
-      "integrity": "sha512-MvjoMCJwEarSbUYk5O+nmoSzSutSsTwF85zcHPQ9OrlFoZOYIjaqBAJIqIXjptyD5vThxGq52Xu/MaJzRkIk4Q==",
+      "version": "6.13.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.13.0.tgz",
+      "integrity": "sha512-+38qI9SOr8tfZ4QmJNplMUxqjbe7LKvvZgWdExBOmd+egZTtjLB67Gu0HRX3u/XOq7UU2Nx6nsjvS16Z9uwfpg==",
      "requires": {
-        "side-channel": "^1.0.4"
+        "side-channel": "^1.0.6"
      }
    },
    "queue-microtask": {
@@ -12802,9 +12818,9 @@
      "dev": true
    },
    "send": {
-      "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.18.0.tgz",
-      "integrity": "sha512-qqWzuOjSFOuqPjFe4NOsMLafToQQwBSOEpS+FwEt3A2V3vKubTquT3vmLTQpFgMXp8AlFWFuP1qKaJZOtPpVXg==",
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.19.0.tgz",
+      "integrity": "sha512-dW41u5VfLXu8SJh5bwRmyYUbAoSB3c9uQh6L8h/KtsFREPWpbX1lrljJo186Jc4nmci/sGUZ9a0a0J2zgfq2hw==",
      "requires": {
        "debug": "2.6.9",
        "depd": "2.0.0",
@@ -12836,6 +12852,11 @@
            }
          }
        },
+        "encodeurl": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+          "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w=="
+        },
        "ms": {
          "version": "2.1.3",
          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -12849,14 +12870,14 @@
      "integrity": "sha512-hr3Wtp/GZIc/6DAGPDcV4/9WoZhjrkXsi5B/07QgX8tsdc6ilr7BFM6PM6rbdAX1kFSDYeZGLipIZZKyQP0O5Q=="
    },
    "serve-static": {
-      "version": "1.15.0",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.15.0.tgz",
-      "integrity": "sha512-XGuRDNjXUijsUL0vl6nSD7cwURuzEgglbOaFuZM9g3kwDXOWVTck0jLzjPzGD+TazWbboZYu52/9/XPdUgne9g==",
+      "version": "1.16.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.16.2.tgz",
+      "integrity": "sha512-VqpjJZKadQB/PEbEwvFdO43Ax5dFBZ2UECszz8bQ7pi7wt//PWe1P6MN7eCnjsatYtBT6EuiClbjSWP2WrIoTw==",
      "requires": {
-        "encodeurl": "~1.0.2",
+        "encodeurl": "~2.0.0",
        "escape-html": "~1.0.3",
        "parseurl": "~1.3.3",
-        "send": "0.18.0"
+        "send": "0.19.0"
      }
    },
    "set-function-length": {
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
  "name": "mempool-backend",
-  "version": "3.0.0-dev",
+  "version": "3.1.0-dev",
  "description": "Bitcoin mempool visualizer and blockchain explorer backend",
  "license": "GNU Affero General Public License v3.0",
  "homepage": "https://mempool.space",
@@ -42,10 +42,10 @@
    "@babel/core": "^7.25.2",
    "@mempool/electrum-client": "1.1.9",
    "@types/node": "^18.15.3",
-    "axios": "~1.7.2",
+    "axios": "1.7.2",
    "bitcoinjs-lib": "~6.1.3",
    "crypto-js": "~4.2.0",
-    "express": "~4.19.2",
+    "express": "~4.21.0",
    "maxmind": "~4.3.11",
    "mysql2": "~3.11.0",
    "rust-gbt": "file:./rust-gbt",
--- a/backend/src/tests/api/common.ts
+++ b/backend/src/tests/api/common.ts
@@ -1,5 +1,5 @@
 import { Common } from '../../api/common';
-import { MempoolTransactionExtended } from '../../mempool.interfaces';
+import { MempoolTransactionExtended, TransactionExtended } from '../../mempool.interfaces';

 const randomTransactions = require('./test-data/transactions-random.json');
 const replacedTransactions = require('./test-data/transactions-replaced.json');
@@ -10,14 +10,14 @@ describe('Common', () => {
  describe('RBF', () => {
    const newTransactions = rbfTransactions.concat(randomTransactions);
    test('should detect RBF transactions with fast method', () => {
-      const result: { [txid: string]: MempoolTransactionExtended[] } = Common.findRbfTransactions(newTransactions, replacedTransactions);
+      const result: { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }} = Common.findRbfTransactions(newTransactions, replacedTransactions);
      expect(Object.values(result).length).toEqual(2);
      expect(result).toHaveProperty('7219d95161f3718335991ac6d967d24eedec370908c9879bb1e192e6d797d0a6');
      expect(result).toHaveProperty('5387881d695d4564d397026dc5f740f816f8390b4b2c5ec8c20309122712a875');
    });

    test('should detect RBF transactions with scalable method', () => {
-      const result: { [txid: string]: MempoolTransactionExtended[] } = Common.findRbfTransactions(newTransactions, replacedTransactions, true);
+      const result: { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }} = Common.findRbfTransactions(newTransactions, replacedTransactions, true);
      expect(Object.values(result).length).toEqual(2);
      expect(result).toHaveProperty('7219d95161f3718335991ac6d967d24eedec370908c9879bb1e192e6d797d0a6');
      expect(result).toHaveProperty('5387881d695d4564d397026dc5f740f816f8390b4b2c5ec8c20309122712a875');
--- a/backend/src/api/about.routes.ts
+++ b/backend/src/api/about.routes.ts
@@ -70,7 +70,7 @@ class AboutRoutes {
          res.status(500).end();
        }
      })
-      .get(config.MEMPOOL.API_URL_PREFIX + 'services/account/images/:username', async (req, res) => {
+      .get(config.MEMPOOL.API_URL_PREFIX + 'services/account/images/:username/:md5', async (req, res) => {
        const url = `${config.MEMPOOL_SERVICES.API}/${req.originalUrl.replace('/api/v1/services/', '')}`;
        try {
          const response = await axios.get(url, { responseType: 'stream', timeout: 10000 });
--- a/backend/src/api/audit.ts
+++ b/backend/src/api/audit.ts
@@ -2,24 +2,28 @@ import config from '../config';
 import logger from '../logger';
 import { MempoolTransactionExtended, MempoolBlockWithTransactions } from '../mempool.interfaces';
 import rbfCache from './rbf-cache';
+import transactionUtils from './transaction-utils';

 const PROPAGATION_MARGIN = 180; // in seconds, time since a transaction is first seen after which it is assumed to have propagated to all miners

 class Audit {
-  auditBlock(transactions: MempoolTransactionExtended[], projectedBlocks: MempoolBlockWithTransactions[], mempool: { [txId: string]: MempoolTransactionExtended }, useAccelerations: boolean = false)
-   : { censored: string[], added: string[], prioritized: string[], fresh: string[], sigop: string[], fullrbf: string[], accelerated: string[], score: number, similarity: number } {
+  auditBlock(height: number, transactions: MempoolTransactionExtended[], projectedBlocks: MempoolBlockWithTransactions[], mempool: { [txId: string]: MempoolTransactionExtended })
+   : { unseen: string[], censored: string[], added: string[], prioritized: string[], fresh: string[], sigop: string[], fullrbf: string[], accelerated: string[], score: number, similarity: number } {
    if (!projectedBlocks?.[0]?.transactionIds || !mempool) {
-      return { censored: [], added: [], prioritized: [], fresh: [], sigop: [], fullrbf: [], accelerated: [], score: 1, similarity: 1 };
+      return { unseen: [], censored: [], added: [], prioritized: [], fresh: [], sigop: [], fullrbf: [], accelerated: [], score: 1, similarity: 1 };
    }

    const matches: string[] = []; // present in both mined block and template
    const added: string[] = []; // present in mined block, not in template
-    const prioritized: string[] = [] // present in the mined block, not in the template, but further down in the mempool
+    const unseen: string[] = []; // present in the mined block, not in our mempool
+    let prioritized: string[] = []; // higher in the block than would be expected by in-band feerate alone
+    let deprioritized: string[] = []; // lower in the block than would be expected by in-band feerate alone
    const fresh: string[] = []; // missing, but firstSeen or lastBoosted within PROPAGATION_MARGIN
    const rbf: string[] = []; // either missing or present, and either part of a full-rbf replacement, or a conflict with the mined block
    const accelerated: string[] = []; // prioritized by the mempool accelerator
    const isCensored = {}; // missing, without excuse
    const isDisplaced = {};
+    const isAccelerated = {};
    let displacedWeight = 0;
    let matchedWeight = 0;
    let projectedWeight = 0;
@@ -32,6 +36,7 @@ class Audit {
      inBlock[tx.txid] = tx;
      if (mempool[tx.txid] && mempool[tx.txid].acceleration) {
        accelerated.push(tx.txid);
+        isAccelerated[tx.txid] = true;
      }
    }
    // coinbase is always expected
@@ -113,11 +118,16 @@ class Audit {
      } else {
        if (rbfCache.has(tx.txid)) {
          rbf.push(tx.txid);
-        } else if (!isDisplaced[tx.txid]) {
+          if (!mempool[tx.txid] && !rbfCache.getReplacedBy(tx.txid)) {
+            unseen.push(tx.txid);
+          }
+        } else {
          if (mempool[tx.txid]) {
-            prioritized.push(tx.txid);
+            if (isDisplaced[tx.txid]) {
+              added.push(tx.txid);
+            }
          } else {
-            added.push(tx.txid);
+            unseen.push(tx.txid);
          }
        }
        overflowWeight += tx.weight;
@@ -125,6 +135,8 @@ class Audit {
      totalWeight += tx.weight;
    }

+    ({ prioritized, deprioritized } = transactionUtils.identifyPrioritizedTransactions(transactions, 'effectiveFeePerVsize'));
+
    // transactions missing from near the end of our template are probably not being censored
    let overflowWeightRemaining = overflowWeight - (config.MEMPOOL.BLOCK_WEIGHT_UNITS - totalWeight);
    let maxOverflowRate = 0;
@@ -165,6 +177,7 @@ class Audit {
    const similarity = projectedWeight ? matchedWeight / projectedWeight : 1;

    return {
+      unseen,
      censored: Object.keys(isCensored),
      added,
      prioritized,
--- a/backend/src/api/bitcoin/bitcoin-api.ts
+++ b/backend/src/api/bitcoin/bitcoin-api.ts
@@ -323,6 +323,7 @@ class BitcoinApi implements AbstractBitcoinApi {
      'witness_v1_taproot': 'v1_p2tr',
      'nonstandard': 'nonstandard',
      'multisig': 'multisig',
+      'anchor': 'anchor',
      'nulldata': 'op_return'
    };

--- a/backend/src/api/bitcoin/bitcoin.routes.ts
+++ b/backend/src/api/bitcoin/bitcoin.routes.ts
@@ -20,6 +20,7 @@ import difficultyAdjustment from '../difficulty-adjustment';
 import transactionRepository from '../../repositories/TransactionRepository';
 import rbfCache from '../rbf-cache';
 import { calculateMempoolTxCpfp } from '../cpfp';
+import { handleError } from '../../utils/api';

 class BitcoinRoutes {
  public initRoutes(app: Application) {
@@ -86,7 +87,7 @@ class BitcoinRoutes {
      res.set('Content-Type', 'application/json');
      res.send(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -105,13 +106,13 @@ class BitcoinRoutes {
      const result = mempoolBlocks.getMempoolBlocks();
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private getTransactionTimes(req: Request, res: Response) {
    if (!Array.isArray(req.query.txId)) {
-      res.status(500).send('Not an array');
+      handleError(req, res, 500, 'Not an array');
      return;
    }
    const txIds: string[] = [];
@@ -128,12 +129,12 @@ class BitcoinRoutes {
  private async $getBatchedOutspends(req: Request, res: Response): Promise<IEsploraApi.Outspend[][] | void> {
    const txids_csv = req.query.txids;
    if (!txids_csv || typeof txids_csv !== 'string') {
-      res.status(500).send('Invalid txids format');
+      handleError(req, res, 500, 'Invalid txids format');
      return;
    }
    const txids = txids_csv.split(',');
    if (txids.length > 50) {
-      res.status(400).send('Too many txids requested');
+      handleError(req, res, 400, 'Too many txids requested');
      return;
    }

@@ -141,13 +142,13 @@ class BitcoinRoutes {
      const batchedOutspends = await bitcoinApi.$getBatchedOutspends(txids);
      res.json(batchedOutspends);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async $getCpfpInfo(req: Request, res: Response) {
    if (!/^[a-fA-F0-9]{64}$/.test(req.params.txId)) {
-      res.status(501).send(`Invalid transaction ID.`);
+      handleError(req, res, 501, `Invalid transaction ID.`);
      return;
    }

@@ -180,7 +181,7 @@ class BitcoinRoutes {
        try {
          cpfpInfo = await transactionRepository.$getCpfpInfo(req.params.txId);
        } catch (e) {
-          res.status(500).send('failed to get CPFP info');
+          handleError(req, res, 500, 'failed to get CPFP info');
          return;
        }
      }
@@ -209,7 +210,7 @@ class BitcoinRoutes {
      if (e instanceof Error && e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
        statusCode = 404;
      }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
    }
  }

@@ -223,7 +224,7 @@ class BitcoinRoutes {
      if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
        statusCode = 404;
      }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
    }
  }

@@ -284,13 +285,13 @@ class BitcoinRoutes {
        // Not modified
        // 422 Unprocessable Entity
        // https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/422
-        res.status(422).send(`Psbt had no missing nonWitnessUtxos.`);
+        handleError(req, res, 422, `Psbt had no missing nonWitnessUtxos.`);
      }
    } catch (e: any) {
      if (e instanceof Error && new RegExp(notFoundError).test(e.message)) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
      } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
      }
    }
  }
@@ -304,7 +305,7 @@ class BitcoinRoutes {
      if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
        statusCode = 404;
      }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
    }
  }

@@ -314,7 +315,7 @@ class BitcoinRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
      res.json(transactions);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -336,7 +337,7 @@ class BitcoinRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * cacheDuration).toUTCString());
      res.json(block);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -346,7 +347,7 @@ class BitcoinRoutes {
      res.setHeader('content-type', 'text/plain');
      res.send(blockHeader);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -357,10 +358,11 @@ class BitcoinRoutes {
        res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
        res.json(auditSummary);
      } else {
-        return res.status(404).send(`audit not available`);
+        handleError(req, res, 404, `audit not available`);
+        return;
      }
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -371,7 +373,8 @@ class BitcoinRoutes {
        res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
        res.json(auditSummary);
      } else {
-        return res.status(404).send(`transaction audit not available`);
+        handleError(req, res, 404, `transaction audit not available`);
+        return;
      }
    } catch (e) {
      res.status(500).send(e instanceof Error ? e.message : e);
@@ -388,42 +391,49 @@ class BitcoinRoutes {
        return await this.getLegacyBlocks(req, res);
      }
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getBlocksByBulk(req: Request, res: Response) {
    try {
      if (['mainnet', 'testnet', 'signet'].includes(config.MEMPOOL.NETWORK) === false) { // Liquid - Not implemented
-        return res.status(404).send(`This API is only available for Bitcoin networks`);
+        handleError(req, res, 404, `This API is only available for Bitcoin networks`);
+        return;
      }
      if (config.MEMPOOL.MAX_BLOCKS_BULK_QUERY <= 0) {
-        return res.status(404).send(`This API is disabled. Set config.MEMPOOL.MAX_BLOCKS_BULK_QUERY to a positive number to enable it.`);
+        handleError(req, res, 404, `This API is disabled. Set config.MEMPOOL.MAX_BLOCKS_BULK_QUERY to a positive number to enable it.`);
+        return;
      }
      if (!Common.indexingEnabled()) {
-        return res.status(404).send(`Indexing is required for this API`);
+        handleError(req, res, 404, `Indexing is required for this API`);
+        return;
      }

      const from = parseInt(req.params.from, 10);
      if (!req.params.from || from < 0) {
-        return res.status(400).send(`Parameter 'from' must be a block height (integer)`);
+        handleError(req, res, 400, `Parameter 'from' must be a block height (integer)`);
+        return;
      }
      const to = req.params.to === undefined ? await bitcoinApi.$getBlockHeightTip() : parseInt(req.params.to, 10);
      if (to < 0) {
-        return res.status(400).send(`Parameter 'to' must be a block height (integer)`);
+        handleError(req, res, 400, `Parameter 'to' must be a block height (integer)`);
+        return;
      }
      if (from > to) {
-        return res.status(400).send(`Parameter 'to' must be a higher block height than 'from'`);
+        handleError(req, res, 400, `Parameter 'to' must be a higher block height than 'from'`);
+        return;
      }
      if ((to - from + 1) > config.MEMPOOL.MAX_BLOCKS_BULK_QUERY) {
-        return res.status(400).send(`You can only query ${config.MEMPOOL.MAX_BLOCKS_BULK_QUERY} blocks at once.`);
+        handleError(req, res, 400, `You can only query ${config.MEMPOOL.MAX_BLOCKS_BULK_QUERY} blocks at once.`);
+        return;
      }

      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(await blocks.$getBlocksBetweenHeight(from, to));

    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -458,10 +468,10 @@ class BitcoinRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(returnBlocks);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }
-  
+
  private async getBlockTransactions(req: Request, res: Response) {
    try {
      loadingIndicators.setProgress('blocktxs-' + req.params.hash, 0);
@@ -483,7 +493,7 @@ class BitcoinRoutes {
      res.json(transactions);
    } catch (e) {
      loadingIndicators.setProgress('blocktxs-' + req.params.hash, 100);
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -492,13 +502,13 @@ class BitcoinRoutes {
      const blockHash = await bitcoinApi.$getBlockHash(parseInt(req.params.height, 10));
      res.send(blockHash);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getAddress(req: Request, res: Response) {
    if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
      return;
    }

@@ -507,15 +517,16 @@ class BitcoinRoutes {
      res.json(addressData);
    } catch (e) {
      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        return res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
+        return;
      }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getAddressTransactions(req: Request, res: Response): Promise<void> {
    if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
      return;
    }

@@ -528,23 +539,23 @@ class BitcoinRoutes {
      res.json(transactions);
    } catch (e) {
      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
        return;
      }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getAddressTransactionSummary(req: Request, res: Response): Promise<void> {
    if (config.MEMPOOL.BACKEND !== 'esplora') {
-      res.status(405).send('Address summary lookups require mempool/electrs backend.');
+      handleError(req, res, 405, 'Address summary lookups require mempool/electrs backend.');
      return;
    }
  }

  private async getScriptHash(req: Request, res: Response) {
    if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
      return;
    }

@@ -555,15 +566,16 @@ class BitcoinRoutes {
      res.json(addressData);
    } catch (e) {
      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        return res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
+        return;
      }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getScriptHashTransactions(req: Request, res: Response): Promise<void> {
    if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
      return;
    }

@@ -578,16 +590,16 @@ class BitcoinRoutes {
      res.json(transactions);
    } catch (e) {
      if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
        return;
      }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async getScriptHashTransactionSummary(req: Request, res: Response): Promise<void> {
    if (config.MEMPOOL.BACKEND !== 'esplora') {
-      res.status(405).send('Scripthash summary lookups require mempool/electrs backend.');
+      handleError(req, res, 405, 'Scripthash summary lookups require mempool/electrs backend.');
      return;
    }
  }
@@ -597,7 +609,7 @@ class BitcoinRoutes {
      const blockHash = await bitcoinApi.$getAddressPrefix(req.params.prefix);
      res.send(blockHash);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -624,7 +636,7 @@ class BitcoinRoutes {
      const rawMempool = await bitcoinApi.$getRawMempool();
      res.send(rawMempool);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -632,12 +644,13 @@ class BitcoinRoutes {
    try {
      const result = blocks.getCurrentBlockHeight();
      if (!result) {
-        return res.status(503).send(`Service Temporarily Unavailable`);
+        handleError(req, res, 503, `Service Temporarily Unavailable`);
+        return;
      }
      res.setHeader('content-type', 'text/plain');
      res.send(result.toString());
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -647,7 +660,7 @@ class BitcoinRoutes {
      res.setHeader('content-type', 'text/plain');
      res.send(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -657,7 +670,7 @@ class BitcoinRoutes {
      res.setHeader('content-type', 'application/octet-stream');
      res.send(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -666,7 +679,7 @@ class BitcoinRoutes {
      const result = await bitcoinApi.$getTxIdsForBlock(req.params.hash);
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -675,7 +688,7 @@ class BitcoinRoutes {
      const result = await bitcoinClient.validateAddress(req.params.address);
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -688,7 +701,7 @@ class BitcoinRoutes {
        replaces
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -697,7 +710,7 @@ class BitcoinRoutes {
      const result = rbfCache.getRbfTrees(false);
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -706,7 +719,7 @@ class BitcoinRoutes {
      const result = rbfCache.getRbfTrees(true);
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -719,7 +732,7 @@ class BitcoinRoutes {
        res.status(204).send();
      }
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -728,7 +741,7 @@ class BitcoinRoutes {
      const result = await bitcoinApi.$getOutspends(req.params.txId);
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -738,10 +751,10 @@ class BitcoinRoutes {
      if (da) {
        res.json(da);
      } else {
-        res.status(503).send(`Service Temporarily Unavailable`);
+        handleError(req, res, 503, `Service Temporarily Unavailable`);
      }
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -752,7 +765,7 @@ class BitcoinRoutes {
      const txIdResult = await bitcoinApi.$sendRawTransaction(rawTx);
      res.send(txIdResult);
    } catch (e: any) {
-      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
        : (e.message || 'Error'));
    }
  }
@@ -764,7 +777,7 @@ class BitcoinRoutes {
      const txIdResult = await bitcoinClient.sendRawTransaction(txHex);
      res.send(txIdResult);
    } catch (e: any) {
-      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
        : (e.message || 'Error'));
    }
  }
@@ -776,8 +789,7 @@ class BitcoinRoutes {
      const result = await bitcoinApi.$testMempoolAccept(rawTxs, maxfeerate);
      res.send(result);
    } catch (e: any) {
-      res.setHeader('content-type', 'text/plain');
-      res.status(400).send(e.message && e.code ? 'testmempoolaccept RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'testmempoolaccept RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
        : (e.message || 'Error'));
    }
  }
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -33,6 +33,7 @@ import AccelerationRepository from '../repositories/AccelerationRepository';
 import { calculateFastBlockCpfp, calculateGoodBlockCpfp } from './cpfp';
 import mempool from './mempool';
 import CpfpRepository from '../repositories/CpfpRepository';
+import accelerationApi from './services/acceleration';

 class Blocks {
  private blocks: BlockExtended[] = [];
@@ -218,10 +219,10 @@ class Blocks {
    };
  }

-  public summarizeBlockTransactions(hash: string, transactions: TransactionExtended[]): BlockSummary {
+  public summarizeBlockTransactions(hash: string, height: number, transactions: TransactionExtended[]): BlockSummary {
    return {
      id: hash,
-      transactions: Common.classifyTransactions(transactions),
+      transactions: Common.classifyTransactions(transactions, height),
    };
  }

@@ -439,7 +440,7 @@ class Blocks {


        if (config.MEMPOOL.BACKEND === 'esplora') {
-          const txs = (await bitcoinApi.$getTxsForBlock(block.hash)).map(tx => transactionUtils.extendTransaction(tx));
+          const txs = (await bitcoinApi.$getTxsForBlock(block.hash)).map(tx => transactionUtils.extendMempoolTransaction(tx));
          const cpfpSummary = await this.$indexCPFP(block.hash, block.height, txs);
          if (cpfpSummary) {
            await this.$getStrippedBlockTransactions(block.hash, true, true, cpfpSummary, block.height); // This will index the block summary
@@ -615,7 +616,7 @@ class Blocks {
          // add CPFP
          const cpfpSummary = calculateGoodBlockCpfp(height, txs, []);
          // classify
-          const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
+          const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, height, cpfpSummary.transactions);
          await BlocksSummariesRepository.$saveTransactions(height, blockHash, classifiedTxs, 2);
          if (unclassifiedBlocks[height].version < 2 && targetSummaryVersion === 2) {
            const cpfpClusters = await CpfpRepository.$getClustersAt(height);
@@ -652,7 +653,7 @@ class Blocks {
            }
            const cpfpSummary = calculateGoodBlockCpfp(height, templateTxs?.filter(tx => tx['effectiveFeePerVsize'] != null) as MempoolTransactionExtended[], []);
            // classify
-            const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
+            const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, height, cpfpSummary.transactions);
            const classifiedTxMap: { [txid: string]: TransactionClassified } = {};
            for (const tx of classifiedTxs) {
              classifiedTxMap[tx.txid] = tx;
@@ -904,9 +905,14 @@ class Blocks {
        }
      }

-      const cpfpSummary: CpfpSummary = calculateGoodBlockCpfp(block.height, transactions, Object.values(mempool.getAccelerations()).map(a => ({ txid: a.txid, max_bid: a.feeDelta })));
+      let accelerations = Object.values(mempool.getAccelerations());
+      if (accelerations?.length > 0) {
+        const pool = await this.$findBlockMiner(transactionUtils.stripCoinbaseTransaction(transactions[0]));
+        accelerations = accelerations.filter(a => a.pools.includes(pool.uniqueId));
+      }
+      const cpfpSummary: CpfpSummary = calculateGoodBlockCpfp(block.height, transactions, accelerations.map(a => ({ txid: a.txid, max_bid: a.feeDelta })));
      const blockExtended: BlockExtended = await this.$getBlockExtended(block, cpfpSummary.transactions);
-      const blockSummary: BlockSummary = this.summarizeBlockTransactions(block.id, cpfpSummary.transactions);
+      const blockSummary: BlockSummary = this.summarizeBlockTransactions(block.id, block.height, cpfpSummary.transactions);
      this.updateTimerProgress(timer, `got block data for ${this.currentBlockHeight}`);

      if (Common.indexingEnabled()) {
@@ -927,12 +933,12 @@ class Blocks {
              const newBlock = await this.$indexBlock(lastBlock.height - i);
              this.blocks.push(newBlock);
              this.updateTimerProgress(timer, `reindexed block`);
-              let cpfpSummary;
+              let newCpfpSummary;
              if (config.MEMPOOL.CPFP_INDEXING) {
-                cpfpSummary = await this.$indexCPFP(newBlock.id, lastBlock.height - i);
+                newCpfpSummary = await this.$indexCPFP(newBlock.id, lastBlock.height - i);
                this.updateTimerProgress(timer, `reindexed block cpfp`);
              }
-              await this.$getStrippedBlockTransactions(newBlock.id, true, true, cpfpSummary, newBlock.height);
+              await this.$getStrippedBlockTransactions(newBlock.id, true, true, newCpfpSummary, newBlock.height);
              this.updateTimerProgress(timer, `reindexed block summary`);
            }
            await mining.$indexDifficultyAdjustments();
@@ -981,7 +987,7 @@ class Blocks {

      // start async callbacks
      this.updateTimerProgress(timer, `starting async callbacks for ${this.currentBlockHeight}`);
-      const callbackPromises = this.newAsyncBlockCallbacks.map((cb) => cb(blockExtended, txIds, transactions));
+      const callbackPromises = this.newAsyncBlockCallbacks.map((cb) => cb(blockExtended, txIds, cpfpSummary.transactions));

      if (block.height % 2016 === 0) {
        if (Common.indexingEnabled()) {
@@ -1163,7 +1169,7 @@ class Blocks {
        transactions: cpfpSummary.transactions.map(tx => {
          let flags: number = 0;
          try {
-            flags = Common.getTransactionFlags(tx);
+            flags = Common.getTransactionFlags(tx, height);
          } catch (e) {
            logger.warn('Failed to classify transaction: ' + (e instanceof Error ? e.message : e));
          }
@@ -1178,11 +1184,11 @@ class Blocks {
          };
        }),
      };
-      summaryVersion = 1;
+      summaryVersion = cpfpSummary.version;
    } else {
      if (config.MEMPOOL.BACKEND === 'esplora') {
        const txs = (await bitcoinApi.$getTxsForBlock(hash)).map(tx => transactionUtils.extendTransaction(tx));
-        summary = this.summarizeBlockTransactions(hash, txs);
+        summary = this.summarizeBlockTransactions(hash, height || 0, txs);
        summaryVersion = 1;
      } else {
        // Call Core RPC
@@ -1318,7 +1324,7 @@ class Blocks {
          let summaryVersion = 0;
          if (config.MEMPOOL.BACKEND === 'esplora') {
            const txs = (await bitcoinApi.$getTxsForBlock(cleanBlock.hash)).map(tx => transactionUtils.extendTransaction(tx));
-            summary = this.summarizeBlockTransactions(cleanBlock.hash, txs);
+            summary = this.summarizeBlockTransactions(cleanBlock.hash, cleanBlock.height, txs);
            summaryVersion = 1;
          } else {
            // Call Core RPC
@@ -1397,11 +1403,11 @@ class Blocks {
    return this.currentBlockHeight;
  }

-  public async $indexCPFP(hash: string, height: number, txs?: TransactionExtended[]): Promise<CpfpSummary | null> {
+  public async $indexCPFP(hash: string, height: number, txs?: MempoolTransactionExtended[]): Promise<CpfpSummary | null> {
    let transactions = txs;
    if (!transactions) {
      if (config.MEMPOOL.BACKEND === 'esplora') {
-        transactions = (await bitcoinApi.$getTxsForBlock(hash)).map(tx => transactionUtils.extendTransaction(tx));
+        transactions = (await bitcoinApi.$getTxsForBlock(hash)).map(tx => transactionUtils.extendMempoolTransaction(tx));
      }
      if (!transactions) {
        const block = await bitcoinClient.getBlock(hash, 2);
@@ -1413,7 +1419,7 @@ class Blocks {
    }

    if (transactions?.length != null) {
-      const summary = calculateFastBlockCpfp(height, transactions as TransactionExtended[]);
+      const summary = calculateFastBlockCpfp(height, transactions);

      await this.$saveCpfp(hash, height, summary);

--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@@ -1,6 +1,6 @@
 import * as bitcoinjs from 'bitcoinjs-lib';
 import { Request } from 'express';
-import { CpfpInfo, CpfpSummary, CpfpCluster, EffectiveFeeStats, MempoolBlockWithTransactions, TransactionExtended, MempoolTransactionExtended, TransactionStripped, WorkingEffectiveFeeStats, TransactionClassified, TransactionFlags } from '../mempool.interfaces';
+import { EffectiveFeeStats, MempoolBlockWithTransactions, TransactionExtended, MempoolTransactionExtended, TransactionStripped, WorkingEffectiveFeeStats, TransactionClassified, TransactionFlags } from '../mempool.interfaces';
 import config from '../config';
 import { NodeSocket } from '../repositories/NodesSocketsRepository';
 import { isIP } from 'net';
@@ -10,7 +10,6 @@ import logger from '../logger';
 import { getVarIntLength, opcodes, parseMultisigScript } from '../utils/bitcoin-script';

 // Bitcoin Core default policy settings
-const TX_MAX_STANDARD_VERSION = 2;
 const MAX_STANDARD_TX_WEIGHT = 400_000;
 const MAX_BLOCK_SIGOPS_COST = 80_000;
 const MAX_STANDARD_TX_SIGOPS_COST = (MAX_BLOCK_SIGOPS_COST / 5);
@@ -80,8 +79,8 @@ export class Common {
    return arr;
  }

-  static findRbfTransactions(added: MempoolTransactionExtended[], deleted: MempoolTransactionExtended[], forceScalable = false): { [txid: string]: MempoolTransactionExtended[] } {
-    const matches: { [txid: string]: MempoolTransactionExtended[] } = {};
+  static findRbfTransactions(added: MempoolTransactionExtended[], deleted: MempoolTransactionExtended[], forceScalable = false): { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }} {
+    const matches: { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }} = {};

    // For small N, a naive nested loop is extremely fast, but it doesn't scale
    if (added.length < 1000 && deleted.length < 50 && !forceScalable) {
@@ -96,7 +95,7 @@ export class Common {
              addedTx.vin.some((vin) => vin.txid === deletedVin.txid && vin.vout === deletedVin.vout));
            });
        if (foundMatches?.length) {
-          matches[addedTx.txid] = [...new Set(foundMatches)];
+          matches[addedTx.txid] = { replaced: [...new Set(foundMatches)], replacedBy: addedTx };
        }
      });
    } else {
@@ -124,7 +123,7 @@ export class Common {
            foundMatches.add(deletedTx);
          }
          if (foundMatches.size) {
-            matches[addedTx.txid] = [...foundMatches];
+            matches[addedTx.txid] = { replaced: [...foundMatches], replacedBy: addedTx };
          }
        }
      }
@@ -139,17 +138,17 @@ export class Common {
      const replaced: Set<MempoolTransactionExtended> = new Set();
      for (let i = 0; i < tx.vin.length; i++) {
        const vin = tx.vin[i];
-        const match = spendMap.get(`${vin.txid}:${vin.vout}`);
+        const key = `${vin.txid}:${vin.vout}`;
+        const match = spendMap.get(key);
        if (match && match.txid !== tx.txid) {
          replaced.add(match);
          // remove this tx from the spendMap
          // prevents the same tx being replaced more than once
          for (const replacedVin of match.vin) {
-            const key = `${replacedVin.txid}:${replacedVin.vout}`;
-            spendMap.delete(key);
+            const replacedKey = `${replacedVin.txid}:${replacedVin.vout}`;
+            spendMap.delete(replacedKey);
          }
        }
-        const key = `${vin.txid}:${vin.vout}`;
        spendMap.delete(key);
      }
      if (replaced.size) {
@@ -200,10 +199,13 @@ export class Common {
   *
   * returns true early if any standardness rule is violated, otherwise false
   * (except for non-mandatory-script-verify-flag and p2sh script evaluation rules which are *not* enforced)
+   *
+   * As standardness rules change, we'll need to apply the rules in force *at the time* to older blocks.
+   * For now, just pull out individual rules into versioned functions where necessary.
   */
-  static isNonStandard(tx: TransactionExtended): boolean {
+  static isNonStandard(tx: TransactionExtended, height?: number): boolean {
    // version
-    if (tx.version > TX_MAX_STANDARD_VERSION) {
+    if (this.isNonStandardVersion(tx, height)) {
      return true;
    }

@@ -250,6 +252,8 @@ export class Common {
        }
      } else if (['unknown', 'provably_unspendable', 'empty'].includes(vin.prevout?.scriptpubkey_type || '')) {
        return true;
+      } else if (this.isNonStandardAnchor(tx, height)) {
+        return true;
      }
      // TODO: bad-witness-nonstandard
    }
@@ -335,6 +339,49 @@ export class Common {
    return false;
  }

+  // Individual versioned standardness rules
+
+  static V3_STANDARDNESS_ACTIVATION_HEIGHT = {
+    'testnet4': 42_000,
+    'testnet': 2_900_000,
+    'signet': 211_000,
+    '': 863_500,
+  };
+  static isNonStandardVersion(tx: TransactionExtended, height?: number): boolean {
+    let TX_MAX_STANDARD_VERSION = 3;
+    if (
+      height != null
+      && this.V3_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+      && height <= this.V3_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+    ) {
+      // V3 transactions were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+      TX_MAX_STANDARD_VERSION = 2;
+    }
+
+    if (tx.version > TX_MAX_STANDARD_VERSION) {
+      return true;
+    }
+    return false;
+  }
+
+  static ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT = {
+    'testnet4': 42_000,
+    'testnet': 2_900_000,
+    'signet': 211_000,
+    '': 863_500,
+  };
+  static isNonStandardAnchor(tx: TransactionExtended, height?: number): boolean {
+    if (
+      height != null
+      && this.ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+      && height <= this.ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+    ) {
+      // anchor outputs were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+      return true;
+    }
+    return false;
+  }
+
  static getNonWitnessSize(tx: TransactionExtended): number {
    let weight = tx.weight;
    let hasWitness = false;
@@ -415,7 +462,7 @@ export class Common {
    return flags;
  }

-  static getTransactionFlags(tx: TransactionExtended): number {
+  static getTransactionFlags(tx: TransactionExtended, height?: number): number {
    let flags = tx.flags ? BigInt(tx.flags) : 0n;

    // Update variable flags (CPFP, RBF)
@@ -548,7 +595,7 @@ export class Common {
    if (hasFakePubkey) {
      flags |= TransactionFlags.fake_pubkey;
    }
-    
+
    // fast but bad heuristic to detect possible coinjoins
    // (at least 5 inputs and 5 outputs, less than half of which are unique amounts, with no address reuse)
    const addressReuse = Object.keys(reusedOutputAddresses).reduce((acc, key) => Math.max(acc, (reusedInputAddresses[key] || 0) + (reusedOutputAddresses[key] || 0)), 0) > 1;
@@ -564,17 +611,17 @@ export class Common {
      flags |= TransactionFlags.batch_payout;
    }

-    if (this.isNonStandard(tx)) {
+    if (this.isNonStandard(tx, height)) {
      flags |= TransactionFlags.nonstandard;
    }

    return Number(flags);
  }

-  static classifyTransaction(tx: TransactionExtended): TransactionClassified {
+  static classifyTransaction(tx: TransactionExtended, height?: number): TransactionClassified {
    let flags = 0;
    try {
-      flags = Common.getTransactionFlags(tx);
+      flags = Common.getTransactionFlags(tx, height);
    } catch (e) {
      logger.warn('Failed to add classification flags to transaction: ' + (e instanceof Error ? e.message : e));
    }
@@ -585,8 +632,8 @@ export class Common {
    };
  }

-  static classifyTransactions(txs: TransactionExtended[]): TransactionClassified[] {
-    return txs.map(Common.classifyTransaction);
+  static classifyTransactions(txs: TransactionExtended[], height?: number): TransactionClassified[] {
+    return txs.map(tx => Common.classifyTransaction(tx, height));
  }

  static stripTransaction(tx: TransactionExtended): TransactionStripped {
--- a/backend/src/api/cpfp.ts
+++ b/backend/src/api/cpfp.ts
@@ -6,7 +6,7 @@ import { Acceleration } from './acceleration/acceleration';
 const CPFP_UPDATE_INTERVAL = 60_000; // update CPFP info at most once per 60s per transaction
 const MAX_CLUSTER_ITERATIONS = 100;

-export function calculateFastBlockCpfp(height: number, transactions: TransactionExtended[], saveRelatives: boolean = false): CpfpSummary {
+export function calculateFastBlockCpfp(height: number, transactions: MempoolTransactionExtended[], saveRelatives: boolean = false): CpfpSummary {
  const clusters: CpfpCluster[] = []; // list of all cpfp clusters in this block
  const clusterMap: { [txid: string]: CpfpCluster } = {}; // map transactions to their cpfp cluster
  let clusterTxs: TransactionExtended[] = []; // working list of elements of the current cluster
@@ -93,6 +93,7 @@ export function calculateFastBlockCpfp(height: number, transactions: Transaction
  return {
    transactions,
    clusters,
+    version: 1,
  };
 }

@@ -159,6 +160,7 @@ export function calculateGoodBlockCpfp(height: number, transactions: MempoolTran
  return {
    transactions: transactions.map(tx => txMap[tx.txid]),
    clusters: clusterArray,
+    version: 2,
  };
 }

--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -7,7 +7,7 @@ import cpfpRepository from '../repositories/CpfpRepository';
 import { RowDataPacket } from 'mysql2';

 class DatabaseMigration {
-  private static currentVersion = 80;
+  private static currentVersion = 82;
  private queryTimeout = 3600_000;
  private statisticsAddedIndexed = false;
  private uniqueLogs: string[] = [];
@@ -653,9 +653,11 @@ class DatabaseMigration {
      await this.$executeQuery('ALTER TABLE `prices` ADD `TRY` float DEFAULT "-1"');
      await this.$executeQuery('ALTER TABLE `prices` ADD `ZAR` float DEFAULT "-1"');

-      await this.$executeQuery('TRUNCATE hashrates');
-      await this.$executeQuery('TRUNCATE difficulty_adjustments');
-      await this.$executeQuery(`UPDATE state SET string = NULL WHERE name = 'pools_json_sha'`);
+      if (isBitcoin === true) {
+        await this.$executeQuery('TRUNCATE hashrates');
+        await this.$executeQuery('TRUNCATE difficulty_adjustments');
+        await this.$executeQuery(`UPDATE state SET string = NULL WHERE name = 'pools_json_sha'`);
+      }

      await this.updateToSchemaVersion(75);
    }
@@ -691,6 +693,18 @@ class DatabaseMigration {
      await this.$executeQuery('ALTER TABLE `blocks` ADD coinbase_addresses JSON DEFAULT NULL');
      await this.updateToSchemaVersion(80);
    }
+
+    if (databaseSchemaVersion < 81 && isBitcoin === true) {
+      await this.$executeQuery('ALTER TABLE `blocks_audits` ADD version INT NOT NULL DEFAULT 0');
+      await this.$executeQuery('ALTER TABLE `blocks_audits` ADD INDEX `version` (`version`)');
+      await this.$executeQuery('ALTER TABLE `blocks_audits` ADD unseen_txs JSON DEFAULT "[]"');
+      await this.updateToSchemaVersion(81);
+    }
+
+    if (databaseSchemaVersion < 82 && isBitcoin === true && config.MEMPOOL.NETWORK === 'mainnet') {
+      await this.$fixBadV1AuditBlocks();
+      await this.updateToSchemaVersion(82);
+    }
  }

  /**
@@ -1305,6 +1319,28 @@ class DatabaseMigration {
      logger.warn(`Failed to migrate cpfp transaction data`);
    }
  }
+
+  private async $fixBadV1AuditBlocks(): Promise<void> {
+    const badBlocks = [
+      '000000000000000000011ad49227fc8c9ba0ca96ad2ebce41a862f9a244478dc',
+      '000000000000000000010ac1f68b3080153f2826ffddc87ceffdd68ed97d6960',
+      '000000000000000000024cbdafeb2660ae8bd2947d166e7fe15d1689e86b2cf7',
+      '00000000000000000002e1dbfbf6ae057f331992a058b822644b368034f87286',
+      '0000000000000000000019973b2778f08ad6d21e083302ff0833d17066921ebb',
+    ];
+
+    for (const hash of badBlocks) {
+      try {
+        await this.$executeQuery(`
+          UPDATE blocks_audits
+          SET prioritized_txs = '[]'
+          WHERE hash = '${hash}'
+        `, true);
+      } catch (e) {
+        continue;
+      }
+    }
+  }
 }

 export default new DatabaseMigration();
--- a/backend/src/api/disk-cache.ts
+++ b/backend/src/api/disk-cache.ts
@@ -257,6 +257,7 @@ class DiskCache {
          trees: rbfData.rbf.trees,
          expiring: rbfData.rbf.expiring.map(([txid, value]) => ({ key: txid, value })),
          mempool: memPool.getMempool(),
+          spendMap: memPool.getSpendMap(),
        });
      }
    } catch (e) {
--- a/backend/src/api/explorer/channels.routes.ts
+++ b/backend/src/api/explorer/channels.routes.ts
@@ -1,6 +1,7 @@
 import config from '../../config';
 import { Application, Request, Response } from 'express';
 import channelsApi from './channels.api';
+import { handleError } from '../../utils/api';

 class ChannelsRoutes {
  constructor() { }
@@ -22,7 +23,7 @@ class ChannelsRoutes {
      const channels = await channelsApi.$searchChannelsById(req.params.search);
      res.json(channels);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -38,7 +39,7 @@ class ChannelsRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(channel);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -53,11 +54,11 @@ class ChannelsRoutes {
      const status: string = typeof req.query.status === 'string' ? req.query.status : '';

      if (index < -1) {
-        res.status(400).send('Invalid index');
+        handleError(req, res, 400, 'Invalid index');
        return;
      }
      if (['open', 'active', 'closed'].includes(status) === false) {
-        res.status(400).send('Invalid status');
+        handleError(req, res, 400, 'Invalid status');
        return;
      }

@@ -69,14 +70,14 @@ class ChannelsRoutes {
      res.header('X-Total-Count', channelsCount.toString());
      res.json(channels);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

  private async $getChannelsByTransactionIds(req: Request, res: Response): Promise<void> {
    try {
      if (!Array.isArray(req.query.txId)) {
-        res.status(400).send('Not an array');
+        handleError(req, res, 400, 'Not an array');
        return;
      }
      const txIds: string[] = [];
@@ -107,7 +108,7 @@ class ChannelsRoutes {

      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -119,7 +120,7 @@ class ChannelsRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(channels);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -132,7 +133,7 @@ class ChannelsRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(channels);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

--- a/backend/src/api/explorer/general.routes.ts
+++ b/backend/src/api/explorer/general.routes.ts
@@ -3,6 +3,8 @@ import { Application, Request, Response } from 'express';
 import nodesApi from './nodes.api';
 import channelsApi from './channels.api';
 import statisticsApi from './statistics.api';
+import { handleError } from '../../utils/api';
+
 class GeneralLightningRoutes {
  constructor() { }

@@ -27,7 +29,7 @@ class GeneralLightningRoutes {
        channels: channels,
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -41,7 +43,7 @@ class GeneralLightningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(statistics);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -50,7 +52,7 @@ class GeneralLightningRoutes {
      const statistics = await statisticsApi.$getLatestStatistics();
      res.json(statistics);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }
 }
--- a/backend/src/api/explorer/nodes.routes.ts
+++ b/backend/src/api/explorer/nodes.routes.ts
@@ -3,6 +3,7 @@ import { Application, Request, Response } from 'express';
 import nodesApi from './nodes.api';
 import DB from '../../database';
 import { INodesRanking } from '../../mempool.interfaces';
+import { handleError } from '../../utils/api';

 class NodesRoutes {
  constructor() { }
@@ -31,7 +32,7 @@ class NodesRoutes {
      const nodes = await nodesApi.$searchNodeByPublicKeyOrAlias(req.params.search);
      res.json(nodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -181,13 +182,13 @@ class NodesRoutes {
          }
        } catch (e) {}
      }
-      
+
      res.header('Pragma', 'public');
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(nodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -195,7 +196,7 @@ class NodesRoutes {
    try {
      const node = await nodesApi.$getNode(req.params.public_key);
      if (!node) {
-        res.status(404).send('Node not found');
+        handleError(req, res, 404, 'Node not found');
        return;
      }
      res.header('Pragma', 'public');
@@ -203,7 +204,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(node);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -215,7 +216,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(statistics);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -223,7 +224,7 @@ class NodesRoutes {
    try {
      const node = await nodesApi.$getFeeHistogram(req.params.public_key);
      if (!node) {
-        res.status(404).send('Node not found');
+        handleError(req, res, 404, 'Node not found');
        return;
      }
      res.header('Pragma', 'public');
@@ -231,7 +232,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(node);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -247,7 +248,7 @@ class NodesRoutes {
        topByChannels: topChannelsNodes,
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -259,7 +260,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(topCapacityNodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -271,7 +272,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(topCapacityNodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -283,7 +284,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(topCapacityNodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -295,7 +296,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
      res.json(nodesPerAs);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -307,7 +308,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
      res.json(worldNodes);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -322,7 +323,7 @@ class NodesRoutes {
      );

      if (country.length === 0) {
-        res.status(404).send(`This country does not exist or does not host any lightning nodes on clearnet`);
+        handleError(req, res, 404, `This country does not exist or does not host any lightning nodes on clearnet`);
        return;
      }

@@ -335,7 +336,7 @@ class NodesRoutes {
        nodes: nodes,
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -349,7 +350,7 @@ class NodesRoutes {
      );

      if (isp.length === 0) {
-        res.status(404).send(`This ISP does not exist or does not host any lightning nodes on clearnet`);
+        handleError(req, res, 404, `This ISP does not exist or does not host any lightning nodes on clearnet`);
        return;
      }

@@ -362,7 +363,7 @@ class NodesRoutes {
        nodes: nodes,
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -374,7 +375,7 @@ class NodesRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
      res.json(nodesPerAs);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }
 }
--- a/backend/src/api/liquid/liquid.routes.ts
+++ b/backend/src/api/liquid/liquid.routes.ts
@@ -3,6 +3,7 @@ import { Application, Request, Response } from 'express';
 import config from '../../config';
 import elementsParser from './elements-parser';
 import icons from './icons';
+import { handleError } from '../../utils/api';

 class LiquidRoutes {
  public initRoutes(app: Application) {
@@ -42,7 +43,7 @@ class LiquidRoutes {
      res.setHeader('content-length', result.length);
      res.send(result);
    } else {
-      res.status(404).send('Asset icon not found');
+      handleError(req, res, 404, 'Asset icon not found');
    }
  }

@@ -51,7 +52,7 @@ class LiquidRoutes {
    if (result) {
      res.json(result);
    } else {
-      res.status(404).send('Asset icons not found');
+      handleError(req, res, 404, 'Asset icons not found');
    }
  }

@@ -82,7 +83,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60 * 60).toUTCString());
      res.json(pegs);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -94,7 +95,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60 * 60).toUTCString());
      res.json(reserves);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -106,7 +107,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(currentSupply);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -118,7 +119,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(currentReserves);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -130,7 +131,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(auditStatus);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -142,7 +143,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(federationAddresses);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -154,7 +155,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(federationAddresses);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -166,7 +167,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(federationUtxos);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -178,7 +179,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(expiredUtxos);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -190,7 +191,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(federationUtxos);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -202,7 +203,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(emergencySpentUtxos);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -214,7 +215,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(emergencySpentUtxos);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -226,7 +227,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(recentPegs);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -238,7 +239,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(pegsVolume);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -250,7 +251,7 @@ class LiquidRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
      res.json(pegsCount);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

--- a/backend/src/api/mempool-blocks.ts
+++ b/backend/src/api/mempool-blocks.ts
@@ -369,7 +369,7 @@ class MempoolBlocks {
    const lastBlockIndex = blocks.length - 1;
    let hasBlockStack = blocks.length >= 8;
    let stackWeight;
-    let feeStatsCalculator: OnlineFeeStatsCalculator | void;
+    let feeStatsCalculator: OnlineFeeStatsCalculator | null = null;
    if (hasBlockStack) {
      if (blockWeights && blockWeights[7] !== null) {
        stackWeight = blockWeights[7];
@@ -380,28 +380,36 @@ class MempoolBlocks {
      feeStatsCalculator = new OnlineFeeStatsCalculator(stackWeight, 0.5, [10, 20, 30, 40, 50, 60, 70, 80, 90]);
    }

+    const ancestors: Ancestor[] = [];
+    const descendants: Ancestor[] = [];
+    let ancestor: MempoolTransactionExtended
    for (const cluster of clusters) {
      for (const memberTxid of cluster) {
        const mempoolTx = mempool[memberTxid];
        if (mempoolTx) {
-          const ancestors: Ancestor[] = [];
-          const descendants: Ancestor[] = [];
+          // ugly micro-optimization to avoid allocating new arrays
+          ancestors.length = 0;
+          descendants.length = 0;
          let matched = false;
          cluster.forEach(txid => {
+            ancestor = mempool[txid];
            if (txid === memberTxid) {
              matched = true;
            } else {
-              if (!mempool[txid]) {
+              if (!ancestor) {
                console.log('txid missing from mempool! ', txid, candidates?.txs[txid]);
+                return;
              }
              const relative = {
                txid: txid,
-                fee: mempool[txid].fee,
-                weight: (mempool[txid].adjustedVsize * 4),
+                fee: ancestor.fee,
+                weight: (ancestor.adjustedVsize * 4),
              };
              if (matched) {
                descendants.push(relative);
-                mempoolTx.lastBoosted = Math.max(mempoolTx.lastBoosted || 0, mempool[txid].firstSeen || 0);
+                if (!mempoolTx.lastBoosted || (ancestor.firstSeen && ancestor.firstSeen > mempoolTx.lastBoosted)) {
+                  mempoolTx.lastBoosted = ancestor.firstSeen;
+                }
              } else {
                ancestors.push(relative);
              }
@@ -410,7 +418,20 @@ class MempoolBlocks {
          if (mempoolTx.ancestors?.length !== ancestors.length || mempoolTx.descendants?.length !== descendants.length) {
            mempoolTx.cpfpDirty = true;
          }
-          Object.assign(mempoolTx, {ancestors, descendants, bestDescendant: null, cpfpChecked: true});
+          // ugly micro-optimization to avoid allocating new arrays or objects
+          if (mempoolTx.ancestors) {
+            mempoolTx.ancestors.length = 0;
+          } else {
+            mempoolTx.ancestors = [];
+          }
+          if (mempoolTx.descendants) {
+            mempoolTx.descendants.length = 0;
+          } else {
+            mempoolTx.descendants = [];
+          }
+          mempoolTx.ancestors.push(...ancestors);
+          mempoolTx.descendants.push(...descendants);
+          mempoolTx.cpfpChecked = true;
        }
      }
    }
@@ -420,7 +441,10 @@ class MempoolBlocks {
    const sizeLimit = (config.MEMPOOL.BLOCK_WEIGHT_UNITS / 4) * 1.2;
    // update this thread's mempool with the results
    let mempoolTx: MempoolTransactionExtended;
-    const mempoolBlocks: MempoolBlockWithTransactions[] = blocks.map((block, blockIndex) => {
+    let acceleration: Acceleration;
+    const mempoolBlocks: MempoolBlockWithTransactions[] = [];
+    for (let blockIndex = 0; blockIndex < blocks.length; blockIndex++) {
+      const block = blocks[blockIndex];
      let totalSize = 0;
      let totalVsize = 0;
      let totalWeight = 0;
@@ -436,7 +460,8 @@ class MempoolBlocks {
        }
      }

-      for (const txid of block) {
+      for (let i = 0; i < block.length; i++) {
+        const txid = block[i];
        if (txid) {
          mempoolTx = mempool[txid];
          // save position in projected blocks
@@ -445,30 +470,37 @@ class MempoolBlocks {
            vsize: totalVsize + (mempoolTx.vsize / 2),
          };

-          const acceleration = accelerations[txid];
-          if (isAcceleratedBy[txid] || (acceleration && (!accelerationPool || acceleration.pools.includes(accelerationPool)))) {
-            if (!mempoolTx.acceleration) {
-              mempoolTx.cpfpDirty = true;
-            }
-            mempoolTx.acceleration = true;
-            mempoolTx.acceleratedBy = isAcceleratedBy[txid] || acceleration?.pools;
-            mempoolTx.acceleratedAt = acceleration?.added;
-            mempoolTx.feeDelta = acceleration?.feeDelta;
-            for (const ancestor of mempoolTx.ancestors || []) {
-              if (!mempool[ancestor.txid].acceleration) {
-                mempool[ancestor.txid].cpfpDirty = true;
+          if (txid in accelerations) {
+            acceleration = accelerations[txid];
+            if (isAcceleratedBy[txid] || (acceleration && (!accelerationPool || acceleration.pools.includes(accelerationPool)))) {
+              if (!mempoolTx.acceleration) {
+                mempoolTx.cpfpDirty = true;
+              }
+              mempoolTx.acceleration = true;
+              mempoolTx.acceleratedBy = isAcceleratedBy[txid] || acceleration?.pools;
+              mempoolTx.acceleratedAt = acceleration?.added;
+              mempoolTx.feeDelta = acceleration?.feeDelta;
+              for (const ancestor of mempoolTx.ancestors || []) {
+                if (!mempool[ancestor.txid].acceleration) {
+                  mempool[ancestor.txid].cpfpDirty = true;
+                }
+                mempool[ancestor.txid].acceleration = true;
+                mempool[ancestor.txid].acceleratedBy = mempoolTx.acceleratedBy;
+                mempool[ancestor.txid].acceleratedAt = mempoolTx.acceleratedAt;
+                mempool[ancestor.txid].feeDelta = mempoolTx.feeDelta;
+                isAcceleratedBy[ancestor.txid] = mempoolTx.acceleratedBy;
+              }
+            } else {
+              if (mempoolTx.acceleration) {
+                mempoolTx.cpfpDirty = true;
+                delete mempoolTx.acceleration;
              }
-              mempool[ancestor.txid].acceleration = true;
-              mempool[ancestor.txid].acceleratedBy = mempoolTx.acceleratedBy;
-              mempool[ancestor.txid].acceleratedAt = mempoolTx.acceleratedAt;
-              mempool[ancestor.txid].feeDelta = mempoolTx.feeDelta;
-              isAcceleratedBy[ancestor.txid] = mempoolTx.acceleratedBy;
            }
          } else {
            if (mempoolTx.acceleration) {
              mempoolTx.cpfpDirty = true;
+              delete mempoolTx.acceleration;
            }
-            delete mempoolTx.acceleration;
          }

          // online calculation of stack-of-blocks fee stats
@@ -486,7 +518,7 @@ class MempoolBlocks {
          }
        }
      }
-      return this.dataToMempoolBlocks(
+      mempoolBlocks[blockIndex] = this.dataToMempoolBlocks(
        block,
        transactions,
        totalSize,
@@ -494,7 +526,7 @@ class MempoolBlocks {
        totalFees,
        (hasBlockStack && blockIndex === lastBlockIndex && feeStatsCalculator) ? feeStatsCalculator.getRawFeeStats() : undefined,
      );
-    });
+    };

    if (saveResults) {
      const deltas = this.calculateMempoolDeltas(this.mempoolBlocks, mempoolBlocks);
--- a/backend/src/api/mempool.ts
+++ b/backend/src/api/mempool.ts
@@ -19,12 +19,13 @@ class Mempool {
  private mempoolCache: { [txId: string]: MempoolTransactionExtended } = {};
  private mempoolCandidates: { [txid: string ]: boolean } = {};
  private spendMap = new Map<string, MempoolTransactionExtended>();
+  private recentlyDeleted: MempoolTransactionExtended[][] = []; // buffer of transactions deleted in recent mempool updates
  private mempoolInfo: IBitcoinApi.MempoolInfo = { loaded: false, size: 0, bytes: 0, usage: 0, total_fee: 0,
                                                    maxmempool: 300000000, mempoolminfee: Common.isLiquid() ? 0.00000100 : 0.00001000, minrelaytxfee: Common.isLiquid() ? 0.00000100 : 0.00001000 };
  private mempoolChangedCallback: ((newMempool: {[txId: string]: MempoolTransactionExtended; }, newTransactions: MempoolTransactionExtended[],
-    deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[]) => void) | undefined;
+    deletedTransactions: MempoolTransactionExtended[][], accelerationDelta: string[]) => void) | undefined;
  private $asyncMempoolChangedCallback: ((newMempool: {[txId: string]: MempoolTransactionExtended; }, mempoolSize: number, newTransactions: MempoolTransactionExtended[],
-    deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[], candidates?: GbtCandidates) => Promise<void>) | undefined;
+    deletedTransactions: MempoolTransactionExtended[][], accelerationDelta: string[], candidates?: GbtCandidates) => Promise<void>) | undefined;

  private accelerations: { [txId: string]: Acceleration } = {};
  private accelerationPositions: { [txid: string]: { poolId: number, pool: string, block: number, vsize: number }[] } = {};
@@ -74,12 +75,12 @@ class Mempool {
  }

  public setMempoolChangedCallback(fn: (newMempool: { [txId: string]: MempoolTransactionExtended; },
-    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[]) => void): void {
+    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[][], accelerationDelta: string[]) => void): void {
    this.mempoolChangedCallback = fn;
  }

  public setAsyncMempoolChangedCallback(fn: (newMempool: { [txId: string]: MempoolTransactionExtended; }, mempoolSize: number,
-    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[],
+    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[][], accelerationDelta: string[],
    candidates?: GbtCandidates) => Promise<void>): void {
    this.$asyncMempoolChangedCallback = fn;
  }
@@ -362,12 +363,15 @@ class Mempool {

    const candidatesChanged = candidates?.added?.length || candidates?.removed?.length;

-    if (this.mempoolChangedCallback && (hasChange || deletedTransactions.length)) {
-      this.mempoolChangedCallback(this.mempoolCache, newTransactions, deletedTransactions, accelerationDelta);
+    this.recentlyDeleted.unshift(deletedTransactions);
+    this.recentlyDeleted.length = Math.min(this.recentlyDeleted.length, 10); // truncate to the last 10 mempool updates
+
+    if (this.mempoolChangedCallback && (hasChange || newTransactions.length || deletedTransactions.length)) {
+      this.mempoolChangedCallback(this.mempoolCache, newTransactions, this.recentlyDeleted, accelerationDelta);
    }
-    if (this.$asyncMempoolChangedCallback && (hasChange || deletedTransactions.length || candidatesChanged)) {
+    if (this.$asyncMempoolChangedCallback && (hasChange || newTransactions.length || deletedTransactions.length || candidatesChanged)) {
      this.updateTimerProgress(timer, 'running async mempool callback');
-      await this.$asyncMempoolChangedCallback(this.mempoolCache, newMempoolSize, newTransactions, deletedTransactions, accelerationDelta, candidates);
+      await this.$asyncMempoolChangedCallback(this.mempoolCache, newMempoolSize, newTransactions, this.recentlyDeleted, accelerationDelta, candidates);
      this.updateTimerProgress(timer, 'completed async mempool callback');
    }

@@ -541,16 +545,7 @@ class Mempool {
    }
  }

-  public handleRbfTransactions(rbfTransactions: { [txid: string]: MempoolTransactionExtended[]; }): void {
-    for (const rbfTransaction in rbfTransactions) {
-      if (this.mempoolCache[rbfTransaction] && rbfTransactions[rbfTransaction]?.length) {
-        // Store replaced transactions
-        rbfCache.add(rbfTransactions[rbfTransaction], this.mempoolCache[rbfTransaction]);
-      }
-    }
-  }
-
-  public handleMinedRbfTransactions(rbfTransactions: { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }}): void {
+  public handleRbfTransactions(rbfTransactions: { [txid: string]: { replaced: MempoolTransactionExtended[], replacedBy: TransactionExtended }}): void {
    for (const rbfTransaction in rbfTransactions) {
      if (rbfTransactions[rbfTransaction].replacedBy && rbfTransactions[rbfTransaction]?.replaced?.length) {
        // Store replaced transactions
--- a/backend/src/api/mini-miner.ts
+++ b/backend/src/api/mini-miner.ts
@@ -337,7 +337,7 @@ export function makeBlockTemplate(candidates: MempoolTransactionExtended[], acce
  let failures = 0;
  while (mempoolArray.length || modified.length) {
    // skip invalid transactions
-    while (mempoolArray[0].used || mempoolArray[0].modified) {
+    while (mempoolArray[0]?.used || mempoolArray[0]?.modified) {
      mempoolArray.shift();
    }

--- a/backend/src/api/mining/mining-routes.ts
+++ b/backend/src/api/mining/mining-routes.ts
@@ -10,6 +10,7 @@ import mining from "./mining";
 import PricesRepository from '../../repositories/PricesRepository';
 import AccelerationRepository from '../../repositories/AccelerationRepository';
 import accelerationApi from '../services/acceleration';
+import { handleError } from '../../utils/api';

 class MiningRoutes {
  public initRoutes(app: Application) {
@@ -53,12 +54,12 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
      if (['testnet', 'signet', 'liquidtestnet'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Prices are not available on testnets.');
+        handleError(req, res, 400, 'Prices are not available on testnets.');
        return;
      }
      const timestamp = parseInt(req.query.timestamp as string, 10) || 0;
      const currency = req.query.currency as string;
-      
+
      let response;
      if (timestamp && currency) {
        response = await PricesRepository.$getNearestHistoricalPrice(timestamp, currency);
@@ -71,7 +72,7 @@ class MiningRoutes {
      }
      res.status(200).send(response);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -84,9 +85,9 @@ class MiningRoutes {
      res.json(stats);
    } catch (e) {
      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
      } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
      }
    }
  }
@@ -103,9 +104,9 @@ class MiningRoutes {
      res.json(poolBlocks);
    } catch (e) {
      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
      } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
      }
    }
  }
@@ -129,7 +130,7 @@ class MiningRoutes {
        res.json(pools);
      }
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -143,7 +144,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(stats);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -157,7 +158,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
      res.json(hashrates);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -172,9 +173,9 @@ class MiningRoutes {
      res.json(hashrates);
    } catch (e) {
      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
      } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
      }
    }
  }
@@ -203,7 +204,7 @@ class MiningRoutes {
        currentDifficulty: currentDifficulty,
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -217,7 +218,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(blockFees);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -235,7 +236,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(blockFees);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -249,7 +250,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(blockRewards);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -263,7 +264,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(blockFeeRates);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -281,7 +282,7 @@ class MiningRoutes {
        weights: blockWeights
      });
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -293,7 +294,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
      res.json(difficulty.map(adj => [adj.time, adj.height, adj.difficulty, adj.adjustment]));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -317,7 +318,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(blocksHealth.map(health => [health.time, health.height, health.match_rate]));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -326,7 +327,7 @@ class MiningRoutes {
      const audit = await BlocksAuditsRepository.$getBlockAudit(req.params.hash);

      if (!audit) {
-        res.status(204).send(`This block has not been audited.`);
+        handleError(req, res, 204, `This block has not been audited.`);
        return;
      }

@@ -335,7 +336,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
      res.json(audit);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -358,7 +359,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
      res.json(result);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -371,7 +372,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      res.json(await BlocksAuditsRepository.$getBlockAuditScores(height, height - 15));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -384,7 +385,7 @@ class MiningRoutes {
      res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
      res.json(audit || 'null');
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -394,12 +395,12 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
        return;
      }
      res.status(200).send(await AccelerationRepository.$getAccelerationInfo(req.params.slug));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -409,13 +410,13 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
        return;
      }
      const height = req.params.height === undefined ? undefined : parseInt(req.params.height, 10);
      res.status(200).send(await AccelerationRepository.$getAccelerationInfo(null, height));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -425,12 +426,12 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
        return;
      }
      res.status(200).send(await AccelerationRepository.$getAccelerationInfo(null, null, req.params.interval));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -440,12 +441,12 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
        return;
      }
      res.status(200).send(await AccelerationRepository.$getAccelerationTotals(<string>req.query.pool, <string>req.query.interval));
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -455,12 +456,12 @@ class MiningRoutes {
      res.header('Cache-control', 'public');
      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
        return;
      }
      res.status(200).send(accelerationApi.accelerations || []);
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }

@@ -470,9 +471,9 @@ class MiningRoutes {
    res.setHeader('expires', -1);
    try {
      accelerationApi.accelerationRequested(req.params.txid);
-      res.status(200).send('ok');
+      res.status(200).send();
    } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
    }
  }
 }
--- a/backend/src/api/rbf-cache.ts
+++ b/backend/src/api/rbf-cache.ts
@@ -44,6 +44,22 @@ interface CacheEvent {
  value?: any,
 }

+/**
+ * Singleton for tracking RBF trees
+ *
+ * Maintains a set of RBF trees, where each tree represents a sequence of
+ * consecutive RBF replacements.
+ *
+ * Trees are identified by the txid of the root transaction.
+ *
+ * To maintain consistency, the following invariants must be upheld:
+ *  - Symmetry: replacedBy(A) = B <=> A in replaces(B)
+ *  - Unique id: treeMap(treeMap(X)) = treeMap(X)
+ *  - Unique tree: A in replaces(B) => treeMap(A) == treeMap(B)
+ *  - Existence: X in treeMap => treeMap(X) in rbfTrees
+ *  - Completeness: X in replacedBy => X in treeMap, Y in replaces => Y in treeMap
+ */
+
 class RbfCache {
  private replacedBy: Map<string, string> = new Map();
  private replaces: Map<string, string[]> = new Map();
@@ -61,6 +77,10 @@ class RbfCache {
    setInterval(this.cleanup.bind(this), 1000 * 60 * 10);
  }

+  /**
+   * Low level cache operations
+   */
+
  private addTx(txid: string, tx: MempoolTransactionExtended): void {
    this.txs.set(txid, tx);
    this.cacheQueue.push({ op: CacheOp.Add, type: 'tx', txid });
@@ -92,6 +112,12 @@ class RbfCache {
    this.cacheQueue.push({ op: CacheOp.Remove, type: 'exp', txid });
  }

+  /**
+   * Basic data structure operations
+   * must uphold tree invariants
+   */
+
+
  public add(replaced: MempoolTransactionExtended[], newTxExtended: MempoolTransactionExtended): void {
    if (!newTxExtended || !replaced?.length || this.txs.has(newTxExtended.txid)) {
      return;
@@ -114,6 +140,10 @@ class RbfCache {
      if (!replacedTx.rbf) {
        txFullRbf = true;
      }
+      if (this.replacedBy.has(replacedTx.txid)) {
+        // should never happen
+        continue;
+      }
      this.replacedBy.set(replacedTx.txid, newTx.txid);
      if (this.treeMap.has(replacedTx.txid)) {
        const treeId = this.treeMap.get(replacedTx.txid);
@@ -140,18 +170,47 @@ class RbfCache {
      }
    }
    newTx.fullRbf = txFullRbf;
-    const treeId = replacedTrees[0].tx.txid;
    const newTree = {
      tx: newTx,
      time: newTime,
      fullRbf: treeFullRbf,
      replaces: replacedTrees
    };
-    this.addTree(treeId, newTree);
-    this.updateTreeMap(treeId, newTree);
+    this.addTree(newTree.tx.txid, newTree);
+    this.updateTreeMap(newTree.tx.txid, newTree);
    this.replaces.set(newTx.txid, replacedTrees.map(tree => tree.tx.txid));
  }

+  public mined(txid): void {
+    if (!this.txs.has(txid)) {
+      return;
+    }
+    const treeId = this.treeMap.get(txid);
+    if (treeId && this.rbfTrees.has(treeId)) {
+      const tree = this.rbfTrees.get(treeId);
+      if (tree) {
+        this.setTreeMined(tree, txid);
+        tree.mined = true;
+        this.dirtyTrees.add(treeId);
+        this.cacheQueue.push({ op: CacheOp.Change, type: 'tree', txid: treeId });
+      }
+    }
+    this.evict(txid);
+  }
+
+  // flag a transaction as removed from the mempool
+  public evict(txid: string, fast: boolean = false): void {
+    this.evictionCount++;
+    if (this.txs.has(txid) && (fast || !this.expiring.has(txid))) {
+      const expiryTime = fast ? Date.now() + (1000 * 60 * 10) : Date.now() + (1000 * 86400); // 24 hours
+      this.addExpiration(txid, expiryTime);
+    }
+  }
+
+  /**
+   * Read-only public interface
+   */
+
  public has(txId: string): boolean {
    return this.txs.has(txId);
  }
@@ -232,32 +291,6 @@ class RbfCache {
    return changes;
  }

-  public mined(txid): void {
-    if (!this.txs.has(txid)) {
-      return;
-    }
-    const treeId = this.treeMap.get(txid);
-    if (treeId && this.rbfTrees.has(treeId)) {
-      const tree = this.rbfTrees.get(treeId);
-      if (tree) {
-        this.setTreeMined(tree, txid);
-        tree.mined = true;
-        this.dirtyTrees.add(treeId);
-        this.cacheQueue.push({ op: CacheOp.Change, type: 'tree', txid: treeId });
-      }
-    }
-    this.evict(txid);
-  }
-
-  // flag a transaction as removed from the mempool
-  public evict(txid: string, fast: boolean = false): void {
-    this.evictionCount++;
-    if (this.txs.has(txid) && (fast || !this.expiring.has(txid))) {
-      const expiryTime = fast ? Date.now() + (1000 * 60 * 10) : Date.now() + (1000 * 86400); // 24 hours
-      this.addExpiration(txid, expiryTime);
-    }
-  }
-
  // is the transaction involved in a full rbf replacement?
  public isFullRbf(txid: string): boolean {
    const treeId = this.treeMap.get(txid);
@@ -271,6 +304,10 @@ class RbfCache {
    return tree?.fullRbf;
  }

+  /**
+   * Cache maintenance & utility functions
+   */
+
  private cleanup(): void {
    const now = Date.now();
    for (const txid of this.expiring.keys()) {
@@ -299,10 +336,6 @@ class RbfCache {
      for (const tx of (replaces || [])) {
        // recursively remove prior versions from the cache
        this.replacedBy.delete(tx);
-        // if this is the id of a tree, remove that too
-        if (this.treeMap.get(tx) === tx) {
-          this.removeTree(tx);
-        }
        this.remove(tx);
      }
    }
@@ -370,14 +403,21 @@ class RbfCache {
    };
  }

-  public async load({ txs, trees, expiring, mempool }): Promise<void> {
+  public async load({ txs, trees, expiring, mempool, spendMap }): Promise<void> {
    try {
      txs.forEach(txEntry => {
        this.txs.set(txEntry.value.txid, txEntry.value);
      });
      this.staleCount = 0;
-      for (const deflatedTree of trees) {
-        await this.importTree(mempool, deflatedTree.root, deflatedTree.root, deflatedTree, this.txs);
+      for (const deflatedTree of trees.sort((a, b) => Object.keys(b).length - Object.keys(a).length)) {
+        const tree = await this.importTree(mempool, deflatedTree.root, deflatedTree.root, deflatedTree, this.txs);
+        if (tree) {
+          this.addTree(tree.tx.txid, tree);
+          this.updateTreeMap(tree.tx.txid, tree);
+          if (tree.mined) {
+            this.evict(tree.tx.txid);
+          }
+        }
      }
      expiring.forEach(expiringEntry => {
        if (this.txs.has(expiringEntry.key)) {
@@ -385,6 +425,31 @@ class RbfCache {
        }
      });
      this.staleCount = 0;
+
+      // connect cached trees to current mempool transactions
+      const conflicts: Record<string, { replacedBy: MempoolTransactionExtended, replaces: Set<MempoolTransactionExtended> }> = {};
+      for (const tree of this.rbfTrees.values()) {
+        const tx = this.getTx(tree.tx.txid);
+        if (!tx || tree.mined) {
+          continue;
+        }
+        for (const vin of tx.vin) {
+          const conflict = spendMap.get(`${vin.txid}:${vin.vout}`);
+          if (conflict && conflict.txid !== tx.txid) {
+            if (!conflicts[conflict.txid]) {
+              conflicts[conflict.txid] = {
+                replacedBy: conflict,
+                replaces: new Set(),
+              };
+            }
+            conflicts[conflict.txid].replaces.add(tx);
+          }
+        }
+      }
+      for (const { replacedBy, replaces } of Object.values(conflicts)) {
+        this.add([...replaces.values()], replacedBy);
+      }
+
      await this.checkTrees();
      logger.debug(`loaded ${txs.length} txs, ${trees.length} trees into rbf cache, ${expiring.length} due to expire, ${this.staleCount} were stale`);
      this.cleanup();
@@ -426,6 +491,12 @@ class RbfCache {
      return;
    }

+    // if this tx is already in the cache, return early
+    if (this.treeMap.has(txid)) {
+      this.removeTree(deflated.key);
+      return;
+    }
+
    // recursively reconstruct child trees
    for (const childId of treeInfo.replaces) {
      const replaced = await this.importTree(mempool, root, childId, deflated, txs, mined);
@@ -457,10 +528,6 @@ class RbfCache {
      fullRbf: treeInfo.fullRbf,
      replaces,
    };
-    this.treeMap.set(txid, root);
-    if (root === txid) {
-      this.addTree(root, tree);
-    }
    return tree;
  }

@@ -511,6 +578,7 @@ class RbfCache {
      processTxs(txs);
    }

+    // evict missing transactions
    for (const txid of txids) {
      if (!found[txid]) {
        this.evict(txid, false);
--- a/backend/src/api/redis-cache.ts
+++ b/backend/src/api/redis-cache.ts
@@ -365,6 +365,7 @@ class RedisCache {
      trees: rbfTrees.map(loadedTree => { loadedTree.value.key = loadedTree.key; return loadedTree.value; }),
      expiring: rbfExpirations,
      mempool: memPool.getMempool(),
+      spendMap: memPool.getSpendMap(),
    });
  }

--- a/backend/src/api/transaction-utils.ts
+++ b/backend/src/api/transaction-utils.ts
@@ -338,6 +338,87 @@ class TransactionUtils {
    const positionOfScript = hasAnnex ? witness.length - 3 : witness.length - 2;
    return witness[positionOfScript];
  }
+
+  // calculate the most parsimonious set of prioritizations given a list of block transactions
+  // (i.e. the most likely prioritizations and deprioritizations)
+  public identifyPrioritizedTransactions(transactions: any[], rateKey: string): { prioritized: string[], deprioritized: string[] } {
+    // find the longest increasing subsequence of transactions
+    // (adapted from https://en.wikipedia.org/wiki/Longest_increasing_subsequence#Efficient_algorithms)
+    // should be O(n log n)
+    const X = transactions.slice(1).reverse().map((tx) => ({ txid: tx.txid, rate: tx[rateKey] })); // standard block order is by *decreasing* effective fee rate, but we want to iterate in increasing order (and skip the coinbase)
+    if (X.length < 2) {
+      return { prioritized: [], deprioritized: [] };
+    }
+    const N = X.length;
+    const P: number[] = new Array(N);
+    const M: number[] = new Array(N + 1);
+    M[0] = -1; // undefined so can be set to any value
+
+    let L = 0;
+    for (let i = 0; i < N; i++) {
+      // Binary search for the smallest positive l ≤ L
+      // such that X[M[l]].effectiveFeePerVsize > X[i].effectiveFeePerVsize
+      let lo = 1;
+      let hi = L + 1;
+      while (lo < hi) {
+        const mid = lo + Math.floor((hi - lo) / 2); // lo <= mid < hi
+        if (X[M[mid]].rate > X[i].rate) {
+          hi = mid;
+        } else { // if X[M[mid]].effectiveFeePerVsize < X[i].effectiveFeePerVsize
+          lo = mid + 1;
+        }
+      }
+
+      // After searching, lo == hi is 1 greater than the
+      // length of the longest prefix of X[i]
+      const newL = lo;
+
+      // The predecessor of X[i] is the last index of
+      // the subsequence of length newL-1
+      P[i] = M[newL - 1];
+      M[newL] = i;
+
+      if (newL > L) {
+        // If we found a subsequence longer than any we've
+        // found yet, update L
+        L = newL;
+      }
+    }
+
+    // Reconstruct the longest increasing subsequence
+    // It consists of the values of X at the L indices:
+    // ..., P[P[M[L]]], P[M[L]], M[L]
+    const LIS: any[] = new Array(L);
+    let k = M[L];
+    for (let j = L - 1; j >= 0; j--) {
+      LIS[j] = X[k];
+      k = P[k];
+    }
+
+    const lisMap = new Map<string, number>();
+    LIS.forEach((tx, index) => lisMap.set(tx.txid, index));
+
+    const prioritized: string[] = [];
+    const deprioritized: string[] = [];
+
+    let lastRate = X[0].rate;
+
+    for (const tx of X) {
+      if (lisMap.has(tx.txid)) {
+        lastRate = tx.rate;
+      } else {
+        if (Math.abs(tx.rate - lastRate) < 0.1) {
+          // skip if the rate is almost the same as the previous transaction
+        } else if (tx.rate <= lastRate) {
+          prioritized.push(tx.txid);
+        } else {
+          deprioritized.push(tx.txid);
+        }
+      }
+    }
+
+    return { prioritized, deprioritized };
+  }
 }

 export default new TransactionUtils();
--- a/backend/src/api/websocket-handler.ts
+++ b/backend/src/api/websocket-handler.ts
@@ -3,7 +3,7 @@ import * as WebSocket from 'ws';
 import {
  BlockExtended, TransactionExtended, MempoolTransactionExtended, WebsocketResponse,
  OptimizedStatistic, ILoadingIndicators, GbtCandidates, TxTrackingInfo,
-  MempoolBlockDelta, MempoolDelta, MempoolDeltaTxids
+  MempoolDelta, MempoolDeltaTxids
 } from '../mempool.interfaces';
 import blocks from './blocks';
 import memPool from './mempool';
@@ -520,8 +520,17 @@ class WebsocketHandler {
    }
  }

+  /**
+   *
+   * @param newMempool
+   * @param mempoolSize
+   * @param newTransactions  array of transactions added this mempool update.
+   * @param recentlyDeletedTransactions array of arrays of transactions removed in the last N mempool updates, most recent first.
+   * @param accelerationDelta
+   * @param candidates
+   */
  async $handleMempoolChange(newMempool: { [txid: string]: MempoolTransactionExtended }, mempoolSize: number,
-    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[],
+    newTransactions: MempoolTransactionExtended[], recentlyDeletedTransactions: MempoolTransactionExtended[][], accelerationDelta: string[],
    candidates?: GbtCandidates): Promise<void> {
    if (!this.webSocketServers.length) {
      throw new Error('No WebSocket.Server have been set');
@@ -529,6 +538,8 @@ class WebsocketHandler {

    this.printLogs();

+    const deletedTransactions = recentlyDeletedTransactions.length ? recentlyDeletedTransactions[0] : [];
+
    const transactionIds = (memPool.limitGBT && candidates) ? Object.keys(candidates?.txs || {}) : Object.keys(newMempool);
    let added = newTransactions;
    let removed = deletedTransactions;
@@ -547,7 +558,7 @@ class WebsocketHandler {
    const mBlockDeltas = mempoolBlocks.getMempoolBlockDeltas();
    const mempoolInfo = memPool.getMempoolInfo();
    const vBytesPerSecond = memPool.getVBytesPerSecond();
-    const rbfTransactions = Common.findRbfTransactions(newTransactions, deletedTransactions);
+    const rbfTransactions = Common.findRbfTransactions(newTransactions, recentlyDeletedTransactions.flat());
    const da = difficultyAdjustment.getDifficultyAdjustment();
    const accelerations = memPool.getAccelerations();
    memPool.handleRbfTransactions(rbfTransactions);
@@ -578,7 +589,7 @@ class WebsocketHandler {
    const replacedTransactions: { replaced: string, by: TransactionExtended }[] = [];
    for (const tx of newTransactions) {
      if (rbfTransactions[tx.txid]) {
-        for (const replaced of rbfTransactions[tx.txid]) {
+        for (const replaced of rbfTransactions[tx.txid].replaced) {
          replacedTransactions.push({ replaced: replaced.txid, by: tx });
        }
      }
@@ -933,6 +944,8 @@ class WebsocketHandler {
      throw new Error('No WebSocket.Server have been set');
    }

+    const blockTransactions = structuredClone(transactions);
+
    this.printLogs();
    await statistics.runStatistics();

@@ -942,10 +955,10 @@ class WebsocketHandler {
    let transactionIds: string[] = (memPool.limitGBT) ? Object.keys(candidates?.txs || {}) : Object.keys(_memPool);

    const accelerations = Object.values(mempool.getAccelerations());
-    await accelerationRepository.$indexAccelerationsForBlock(block, accelerations, transactions);
+    await accelerationRepository.$indexAccelerationsForBlock(block, accelerations, structuredClone(transactions));

    const rbfTransactions = Common.findMinedRbfTransactions(transactions, memPool.getSpendMap());
-    memPool.handleMinedRbfTransactions(rbfTransactions);
+    memPool.handleRbfTransactions(rbfTransactions);
    memPool.removeFromSpendMap(transactions);

    if (config.MEMPOOL.AUDIT && memPool.isInSync()) {
@@ -962,7 +975,7 @@ class WebsocketHandler {
      }

      if (Common.indexingEnabled()) {
-        const { censored, added, prioritized, fresh, sigop, fullrbf, accelerated, score, similarity } = Audit.auditBlock(transactions, projectedBlocks, auditMempool);
+        const { unseen, censored, added, prioritized, fresh, sigop, fullrbf, accelerated, score, similarity } = Audit.auditBlock(block.height, blockTransactions, projectedBlocks, auditMempool);
        const matchRate = Math.round(score * 100 * 100) / 100;

        const stripped = projectedBlocks[0]?.transactions ? projectedBlocks[0].transactions : [];
@@ -984,9 +997,11 @@ class WebsocketHandler {
        });

        BlocksAuditsRepository.$saveAudit({
+          version: 1,
          time: block.timestamp,
          height: block.height,
          hash: block.id,
+          unseenTxs: unseen,
          addedTxs: added,
          prioritizedTxs: prioritized,
          missingTxs: censored,
--- a/backend/src/indexer.ts
+++ b/backend/src/indexer.ts
@@ -10,6 +10,7 @@ import config from './config';
 import auditReplicator from './replication/AuditReplication';
 import statisticsReplicator from './replication/StatisticsReplication';
 import AccelerationRepository from './repositories/AccelerationRepository';
+import BlocksAuditsRepository from './repositories/BlocksAuditsRepository';

 export interface CoreIndex {
  name: string;
@@ -192,6 +193,7 @@ class Indexer {
      await auditReplicator.$sync();
      await statisticsReplicator.$sync();
      await AccelerationRepository.$indexPastAccelerations();
+      await BlocksAuditsRepository.$migrateAuditsV0toV1();
      // do not wait for classify blocks to finish
      blocks.$classifyBlocks();
    } catch (e) {
--- a/backend/src/mempool.interfaces.ts
+++ b/backend/src/mempool.interfaces.ts
@@ -29,9 +29,11 @@ export interface PoolStats extends PoolInfo {
 }

 export interface BlockAudit {
+  version: number,
  time: number,
  height: number,
  hash: string,
+  unseenTxs: string[],
  missingTxs: string[],
  freshTxs: string[],
  sigopTxs: string[],
@@ -383,8 +385,9 @@ export interface CpfpCluster {
 }

 export interface CpfpSummary {
-  transactions: TransactionExtended[];
+  transactions: MempoolTransactionExtended[];
  clusters: CpfpCluster[];
+  version: number;
 }

 export interface Statistic {
--- a/backend/src/replication/AuditReplication.ts
+++ b/backend/src/replication/AuditReplication.ts
@@ -31,11 +31,11 @@ class AuditReplication {
    const missingAudits = await this.$getMissingAuditBlocks();

    logger.debug(`Fetching missing audit data for ${missingAudits.length} blocks from trusted servers`, 'Replication');
-    
+
    let totalSynced = 0;
    let totalMissed = 0;
    let loggerTimer = Date.now();
-    // process missing audits in batches of 
+    // process missing audits in batches of BATCH_SIZE
    for (let i = 0; i < missingAudits.length; i += BATCH_SIZE) {
      const slice = missingAudits.slice(i, i + BATCH_SIZE);
      const results = await Promise.all(slice.map(hash => this.$syncAudit(hash)));
@@ -109,9 +109,11 @@ class AuditReplication {
      version: 1,
    });
    await blocksAuditsRepository.$saveAudit({
+      version: auditSummary.version || 0,
      hash: blockHash,
      height: auditSummary.height,
      time: auditSummary.timestamp || auditSummary.time,
+      unseenTxs: auditSummary.unseenTxs || [],
      missingTxs: auditSummary.missingTxs || [],
      addedTxs: auditSummary.addedTxs || [],
      prioritizedTxs: auditSummary.prioritizedTxs || [],
--- a/backend/src/repositories/AccelerationRepository.ts
+++ b/backend/src/repositories/AccelerationRepository.ts
@@ -192,6 +192,7 @@ class AccelerationRepository {
    }
  }

+  // modifies block transactions
  public async $indexAccelerationsForBlock(block: BlockExtended, accelerations: Acceleration[], transactions: MempoolTransactionExtended[]): Promise<void> {
    const blockTxs: { [txid: string]: MempoolTransactionExtended } = {};
    for (const tx of transactions) {
--- a/backend/src/repositories/BlocksAuditsRepository.ts
+++ b/backend/src/repositories/BlocksAuditsRepository.ts
@@ -1,13 +1,24 @@
-import blocks from '../api/blocks';
 import DB from '../database';
 import logger from '../logger';
-import { BlockAudit, AuditScore, TransactionAudit } from '../mempool.interfaces';
+import bitcoinApi from '../api/bitcoin/bitcoin-api-factory';
+import { BlockAudit, AuditScore, TransactionAudit, TransactionStripped } from '../mempool.interfaces';
+
+interface MigrationAudit {
+  version: number,
+  height: number,
+  id: string,
+  timestamp: number,
+  prioritizedTxs: string[],
+  acceleratedTxs: string[],
+  template: TransactionStripped[],
+  transactions: TransactionStripped[],
+}

 class BlocksAuditRepositories {
  public async $saveAudit(audit: BlockAudit): Promise<void> {
    try {
-      await DB.query(`INSERT INTO blocks_audits(time, height, hash, missing_txs, added_txs, prioritized_txs, fresh_txs, sigop_txs, fullrbf_txs, accelerated_txs, match_rate, expected_fees, expected_weight)
-        VALUE (FROM_UNIXTIME(?), ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, [audit.time, audit.height, audit.hash, JSON.stringify(audit.missingTxs),
+      await DB.query(`INSERT INTO blocks_audits(version, time, height, hash, unseen_txs, missing_txs, added_txs, prioritized_txs, fresh_txs, sigop_txs, fullrbf_txs, accelerated_txs, match_rate, expected_fees, expected_weight)
+        VALUE (?, FROM_UNIXTIME(?), ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, [audit.version, audit.time, audit.height, audit.hash, JSON.stringify(audit.unseenTxs), JSON.stringify(audit.missingTxs),
          JSON.stringify(audit.addedTxs), JSON.stringify(audit.prioritizedTxs), JSON.stringify(audit.freshTxs), JSON.stringify(audit.sigopTxs), JSON.stringify(audit.fullrbfTxs), JSON.stringify(audit.acceleratedTxs), audit.matchRate, audit.expectedFees, audit.expectedWeight]);
    } catch (e: any) {
      if (e.errno === 1062) { // ER_DUP_ENTRY - This scenario is possible upon node backend restart
@@ -62,24 +73,30 @@ class BlocksAuditRepositories {
  public async $getBlockAudit(hash: string): Promise<BlockAudit | null> {
    try {
      const [rows]: any[] = await DB.query(
-        `SELECT blocks_audits.height, blocks_audits.hash as id, UNIX_TIMESTAMP(blocks_audits.time) as timestamp,
-        template,
-        missing_txs as missingTxs,
-        added_txs as addedTxs,
-        prioritized_txs as prioritizedTxs,
-        fresh_txs as freshTxs,
-        sigop_txs as sigopTxs,
-        fullrbf_txs as fullrbfTxs,
-        accelerated_txs as acceleratedTxs,
-        match_rate as matchRate,
-        expected_fees as expectedFees,
-        expected_weight as expectedWeight
+        `SELECT
+          blocks_audits.version,
+          blocks_audits.height,
+          blocks_audits.hash as id,
+          UNIX_TIMESTAMP(blocks_audits.time) as timestamp,
+          template,
+          unseen_txs as unseenTxs,
+          missing_txs as missingTxs,
+          added_txs as addedTxs,
+          prioritized_txs as prioritizedTxs,
+          fresh_txs as freshTxs,
+          sigop_txs as sigopTxs,
+          fullrbf_txs as fullrbfTxs,
+          accelerated_txs as acceleratedTxs,
+          match_rate as matchRate,
+          expected_fees as expectedFees,
+          expected_weight as expectedWeight
        FROM blocks_audits
        JOIN blocks_templates ON blocks_templates.id = blocks_audits.hash
        WHERE blocks_audits.hash = ?
      `, [hash]);
      
      if (rows.length) {
+        rows[0].unseenTxs = JSON.parse(rows[0].unseenTxs);
        rows[0].missingTxs = JSON.parse(rows[0].missingTxs);
        rows[0].addedTxs = JSON.parse(rows[0].addedTxs);
        rows[0].prioritizedTxs = JSON.parse(rows[0].prioritizedTxs);
@@ -101,7 +118,7 @@ class BlocksAuditRepositories {
  public async $getBlockTxAudit(hash: string, txid: string): Promise<TransactionAudit | null> {
    try {
      const blockAudit = await this.$getBlockAudit(hash);
-      
+
      if (blockAudit) {
        const isAdded = blockAudit.addedTxs.includes(txid);
        const isPrioritized = blockAudit.prioritizedTxs.includes(txid);
@@ -115,16 +132,17 @@ class BlocksAuditRepositories {
            firstSeen = tx.time;
          }
        });
+        const wasSeen = blockAudit.version === 1 ? !blockAudit.unseenTxs.includes(txid) : (isExpected || isPrioritized || isAccelerated);

        return {
-          seen: isExpected || isPrioritized || isAccelerated,
+          seen: wasSeen,
          expected: isExpected,
-          added: isAdded,
+          added: isAdded && (blockAudit.version === 0 || !wasSeen),
          prioritized: isPrioritized,
          conflict: isConflict,
          accelerated: isAccelerated,
          firstSeen,
-        }
+        };
      }
      return null;
    } catch (e: any) {
@@ -186,6 +204,96 @@ class BlocksAuditRepositories {
      throw e;
    }
  }
+
+  /**
+   * [INDEXING] Migrate audits from v0 to v1
+   */
+  public async $migrateAuditsV0toV1(): Promise<void> {
+    try {
+      let done = false;
+      let processed = 0;
+      let lastHeight;
+      while (!done) {
+        const [toMigrate]: MigrationAudit[][] = await DB.query(
+          `SELECT
+            blocks_audits.height as height,
+            blocks_audits.hash as id,
+            UNIX_TIMESTAMP(blocks_audits.time) as timestamp,
+            blocks_summaries.transactions as transactions,
+            blocks_templates.template as template,
+            blocks_audits.prioritized_txs as prioritizedTxs,
+            blocks_audits.accelerated_txs as acceleratedTxs
+          FROM blocks_audits
+          JOIN blocks_summaries ON blocks_summaries.id = blocks_audits.hash
+          JOIN blocks_templates ON blocks_templates.id = blocks_audits.hash
+          WHERE blocks_audits.version = 0
+          AND blocks_summaries.version = 2
+          ORDER BY blocks_audits.height DESC
+          LIMIT 100
+        `) as any[];
+
+        if (toMigrate.length <= 0 || lastHeight === toMigrate[0].height) {
+          done = true;
+          break;
+        }
+        lastHeight = toMigrate[0].height;
+
+        logger.info(`migrating ${toMigrate.length} audits to version 1`);
+
+        for (const audit of toMigrate) {
+          // unpack JSON-serialized transaction lists
+          audit.transactions = JSON.parse((audit.transactions as any as string) || '[]');
+          audit.template = JSON.parse((audit.template as any as string) || '[]');
+
+          // we know transactions in the template, or marked "prioritized" or "accelerated"
+          // were seen in our mempool before the block was mined.
+          const isSeen = new Set<string>();
+          for (const tx of audit.template) {
+            isSeen.add(tx.txid);
+          }
+          for (const txid of audit.prioritizedTxs) {
+            isSeen.add(txid);
+          }
+          for (const txid of audit.acceleratedTxs) {
+            isSeen.add(txid);
+          }
+          const unseenTxs = audit.transactions.slice(0).map(tx => tx.txid).filter(txid => !isSeen.has(txid));
+
+          // identify "prioritized" transactions
+          const prioritizedTxs: string[] = [];
+          let lastEffectiveRate = 0;
+          // Iterate over the mined template from bottom to top (excluding the coinbase)
+          // Transactions should appear in ascending order of mining priority.
+          for (let i = audit.transactions.length - 1; i > 0; i--) {
+            const blockTx = audit.transactions[i];
+            // If a tx has a lower in-band effective fee rate than the previous tx,
+            // it must have been prioritized out-of-band (in order to have a higher mining priority)
+            // so exclude from the analysis.
+            if ((blockTx.rate || 0) < lastEffectiveRate) {
+              prioritizedTxs.push(blockTx.txid);
+            } else {
+              lastEffectiveRate = blockTx.rate || 0;
+            }
+          }
+
+          // Update audit in the database
+          await DB.query(`
+            UPDATE blocks_audits SET
+              version = ?,
+              unseen_txs = ?,
+              prioritized_txs = ?
+            WHERE hash = ?
+          `, [1, JSON.stringify(unseenTxs), JSON.stringify(prioritizedTxs), audit.id]);
+        }
+
+        processed += toMigrate.length;
+      }
+
+      logger.info(`migrated ${processed} audits to version 1`);
+    } catch (e: any) {
+      logger.err(`Error while migrating audits from v0 to v1. Will try again later. Reason: ` + (e instanceof Error ? e.message : e));
+    }
+  }
 }

 export default new BlocksAuditRepositories();
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -1106,7 +1106,7 @@ class BlocksRepository {
        let summaryVersion = 0;
        if (config.MEMPOOL.BACKEND === 'esplora') {
          const txs = (await bitcoinApi.$getTxsForBlock(dbBlk.id)).map(tx => transactionUtils.extendTransaction(tx));
-          summary = blocks.summarizeBlockTransactions(dbBlk.id, txs);
+          summary = blocks.summarizeBlockTransactions(dbBlk.id, dbBlk.height, txs);
          summaryVersion = 1;
        } else {
          // Call Core RPC
--- a/backend/src/utils/api.ts
+++ b/backend/src/utils/api.ts
@@ -0,0 +1,9 @@
+import { Request, Response } from 'express';
+
+export function handleError(req: Request, res: Response, statusCode: number, errorMessage: string | unknown): void {
+  if (req.accepts('json')) {
+    res.status(statusCode).json({ error: errorMessage });
+  } else {
+    res.status(statusCode).send(errorMessage);
+  }
+}
--- a/backend/src/utils/bitcoin-script.ts
+++ b/backend/src/utils/bitcoin-script.ts
@@ -158,7 +158,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
  if (!opN) {
    return;
  }
-  if (!opN.startsWith('OP_PUSHNUM_')) {
+  if (opN !== 'OP_0' && !opN.startsWith('OP_PUSHNUM_')) {
    return;
  }
  const n = parseInt(opN.match(/[0-9]+/)?.[0] || '', 10);
@@ -178,7 +178,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
  if (!opM) {
    return;
  }
-  if (!opM.startsWith('OP_PUSHNUM_')) {
+  if (opM !== 'OP_0' && !opM.startsWith('OP_PUSHNUM_')) {
    return;
  }
  const m = parseInt(opM.match(/[0-9]+/)?.[0] || '', 10);
--- a/frontend/README.md
+++ b/frontend/README.md
@@ -33,7 +33,7 @@ $ npm run config:defaults:liquid

 ### 3. Run the Frontend

-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer._

 Install project dependencies and run the frontend server:

@@ -70,7 +70,7 @@ Set up the [Mempool backend](../backend/) first, if you haven't already.

 ### 1. Build the Frontend

-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer._

 Build the frontend:

--- a/frontend/angular.json
+++ b/frontend/angular.json
@@ -54,6 +54,10 @@
            "translation": "src/locale/messages.fr.xlf",
            "baseHref": "/fr/"
          },
+          "hr": {
+            "translation": "src/locale/messages.hr.xlf",
+            "baseHref": "/hr/"
+          },
          "ja": {
            "translation": "src/locale/messages.ja.xlf",
            "baseHref": "/ja/"
--- a/frontend/cypress/e2e/mainnet/mainnet.spec.ts
+++ b/frontend/cypress/e2e/mainnet/mainnet.spec.ts
@@ -543,16 +543,7 @@ describe('Mainnet', () => {
          }
        });

-        cy.get('.alert').should('be.visible');
-        cy.get('.alert').invoke('css', 'width').then((alertWidth) => {
-          cy.get('.container-xl > :nth-child(3)').invoke('css', 'width').should('equal', alertWidth);
-        });
-
-        cy.get('.btn-warning').then(getRectangle).then((rectA) => {
-          cy.get('.alert').then(getRectangle).then((rectB) => {
-            expect(areOverlapping(rectA, rectB), 'Confirmations box and RBF alert are overlapping').to.be.false;
-          });
-        });
+        cy.get('.alert-replaced').should('be.visible');
      });

      it('shows RBF transactions properly (desktop)', () => {
@@ -603,4 +594,63 @@ describe('Mainnet', () => {
  } else {
    it.skip(`Tests cannot be run on the selected BASE_MODULE ${baseModule}`);
  }
+
+  describe('Accelerated Transactions', () => {
+    describe('Unconfirmed Accelerated Transaction', () => {
+      before(() => {
+        cy.intercept('/api/tx/40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a', {
+          fixture: 'accelerated_tx.json'
+        }).as('tx');
+
+        cy.intercept('/api/v1/cpfp/40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a', {
+          fixture: 'accelerated_cpfp.json'
+        }).as('accelerated_cpfp');
+
+        cy.intercept('/api/v1/transaction-times?txId%5B%5D=40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a', {
+          body: '[1723416086]',
+        }).as('transaction-time');
+
+        cy.intercept('https://mempool.space/api/v1/services/accelerator/accelerations/history', {
+          fixture: 'accelerated_history.json'
+        }).as('history');
+
+        cy.viewport('macbook-16');
+        cy.mockMempoolSocket();
+        cy.visit('/tx/40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a');
+
+        emitMempoolInfo({
+          'params': {
+            command: 'txPosition'
+          }
+        });
+        cy.waitForSkeletonGone();
+      });
+
+      it('shows unconfirmed accelerated transaction properly', () => {
+        cy.get('.badge-accelerated').should('exist');
+        cy.get('[data-cy="active-acceleration-box"]').should('exist');
+        cy.get('[data-cy="active-acceleration-box"] > table > tbody > :nth-child(1) .oobFees').invoke('text').should('contain', `15.5 `);
+        cy.get('[data-cy="tx-fee-delta"]').invoke('text').should('contain', `3,000`);
+        cy.get('#acceleration-timeline').should('be.visible');
+      });
+
+      // currently doesn't work due to 'accelerations/history' endpoint not being intercepted
+      it.skip('properly render accelerated transacion as it confirms', () => {
+        emitMempoolInfo({
+          'params': {
+            command: 'txPositionConfirmed'
+          }
+        });
+
+        cy.wait(1000);
+
+        cy.get('.badge-accelerated').should('exist');
+        cy.get('[data-cy="active-acceleration-box"]').should('not.exist');
+        cy.get('[data-cy="fee-rate"]').invoke('text').should('contain', `2.17 `);
+        cy.get('[data-cy="tx-fee-delta"]').invoke('text').should('contain', `39`);
+        cy.get('#acceleration-timeline').should('be.visible');
+      });
+    });
+  });
+
 });
--- a/frontend/cypress/fixtures/accelerated_cpfp.json
+++ b/frontend/cypress/fixtures/accelerated_cpfp.json
@@ -0,0 +1,20 @@
+{
+  "ancestors": [],
+  "bestDescendant": null,
+  "descendants": [],
+  "effectiveFeePerVsize": 15.452914798206278,
+  "sigops": 4,
+  "fee": 446,
+  "adjustedVsize": 223,
+  "acceleration": true,
+  "acceleratedBy": [
+      111,
+      43,
+      102,
+      112,
+      142,
+      115
+  ],
+  "acceleratedAt": 1723417553,
+  "feeDelta": 3000
+}
--- a/frontend/cypress/fixtures/accelerated_history.json
+++ b/frontend/cypress/fixtures/accelerated_history.json
@@ -0,0 +1,24 @@
+[
+  {
+      "txid": "40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a",
+      "status": "completed",
+      "added": 1723417553,
+      "lastUpdated": 1723424127,
+      "effectiveFee": 446,
+      "effectiveVsize": 223,
+      "feeDelta": 3000,
+      "blockHash": "000000000000000000005bc0a822da172e43c687428cc268177ad27d636f3059",
+      "blockHeight": 856387,
+      "bidBoost": 39,
+      "boostVersion": "v2",
+      "pools": [
+          111,
+          43,
+          102,
+          112,
+          142,
+          115
+      ],
+      "minedByPoolUniqueId": 111
+  }
+]
--- a/frontend/cypress/fixtures/accelerated_position.json
+++ b/frontend/cypress/fixtures/accelerated_position.json
@@ -0,0 +1,48 @@
+{
+  "txPosition": {
+      "txid": "40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a",
+      "position": {
+          "block": 0,
+          "vsize": 37321.5,
+          "accelerated": true
+      },
+      "accelerationPositions": [
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 111,
+              "pool": "Foundry USA"
+          },
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 43,
+              "pool": "Braiins Pool"
+          },
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 102,
+              "pool": "SpiderPool"
+          },
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 112,
+              "pool": "SBI Crypto"
+          },
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 142,
+              "pool": "OCEAN"
+          },
+          {
+              "block": 0,
+              "vsize": 37321.5,
+              "poolId": 115,
+              "pool": "MARA Pool"
+          }
+      ]
+  }
+}
--- a/frontend/cypress/fixtures/accelerated_position_confirmed.json
+++ b/frontend/cypress/fixtures/accelerated_position_confirmed.json
@@ -0,0 +1,66 @@
+{
+  "txConfirmed": "40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a",
+  "block":{
+    "id": "000000000000000000014cc3d86b7c096ef92aca180e3cf27d72e34ce944caed",
+    "height": 837051,
+    "version": 821051392,
+    "timestamp": 1723452588,
+    "bits": 386079422,
+    "nonce": 2215159619,
+    "difficulty": 90666502495565.78,
+    "merkle_root": "207ad51f6c1150f63fcd043eb1b4624b77ac70558594317e989c1109fbb47c47",
+    "tx_count": 2284,
+    "size": 1490522,
+    "weight": 3993155,
+    "previousblockhash": "00000000000000000002b8a66307c997aa27bf99a384ceb7cfe5f29576eddb26",
+    "mediantime": 1723450608,
+    "stale": false,
+    "extras": {
+      "reward": 319417632,
+      "coinbaseRaw": "0378110d04adccb9662f466f756e6472792055534120506f6f6c202364726f70676f6c642f2c08727fca05000000000000",
+      "orphans": [],
+      "medianFee": 4.021446911342697,
+      "feeRange": [
+        3.1,
+        3.4184397163120566,
+        3.998624011007912,
+        4.444976076555024,
+        5.382978723404255,
+        11.62814371257485,
+        468.75
+      ],
+      "totalFees": 6917632,
+      "avgFee": 3030,
+      "avgFeeRate": 6,
+      "utxoSetChange": -2647,
+      "avgTxSize": 652.44,
+      "totalInputs": 8544,
+      "totalOutputs": 5897,
+      "totalOutputAmt": 2950130527407,
+      "segwitTotalTxs": 2084,
+      "segwitTotalSize": 1137877,
+      "segwitTotalWeight": 2582683,
+      "feePercentiles": null,
+      "virtualSize": 998288.75,
+      "coinbaseAddress": "bc1p8k4v4xuz55dv49svzjg43qjxq2whur7ync9tm0xgl5t4wjl9ca9snxgmlt",
+      "coinbaseAddresses": [
+        "bc1p8k4v4xuz55dv49svzjg43qjxq2whur7ync9tm0xgl5t4wjl9ca9snxgmlt",
+        "bc1qxhmdufsvnuaaaer4ynz88fspdsxq2h9e9cetdj"
+      ],
+      "coinbaseSignature": "OP_PUSHNUM_1 OP_PUSHBYTES_32 3daaca9b82a51aca960c1491588246029d7e0fc49e0abdbcc8fd17574be5c74b",
+      "coinbaseSignatureAscii": "f/Foundry USA Pool #dropgold/",
+      "header": "0040f03026dbed7695f2e5cfb7ce84a399bf27aa97c90763a6b802000000000000000000477cb4fb09119c987e3194855570ac774b62b4b13e04cd3ff650116c1fd57a20acccb966be1a031743a70884",
+      "utxoSetSize": null,
+      "totalInputAmt": null,
+      "pool": {
+        "id": 111,
+        "name": "Foundry USA",
+        "slug": "foundryusa"
+      },
+      "matchRate": 100,
+      "expectedFees": 6957093,
+      "expectedWeight": 3991895,
+      "similarity": 0.9907343565880212
+    }
+  }
+}
--- a/frontend/cypress/fixtures/accelerated_tx.json
+++ b/frontend/cypress/fixtures/accelerated_tx.json
@@ -0,0 +1,45 @@
+{
+  "txid": "40ba6b3c4ce73e3ba0160c137b1cc6c2c7333a2b9c19537b61ee8a8aaf095e0a",
+  "version": 1,
+  "locktime": 0,
+  "vin": [
+      {
+          "txid": "7c6e17739d7225d097db1f08df17d06dc712dc0951f266db1070939b85b5e8e7",
+          "vout": 0,
+          "prevout": {
+              "scriptpubkey": "76a914fb706ea28ba8f83e3cfa2fa1f3f01a6a613b94ca88ac",
+              "scriptpubkey_asm": "OP_DUP OP_HASH160 OP_PUSHBYTES_20 fb706ea28ba8f83e3cfa2fa1f3f01a6a613b94ca OP_EQUALVERIFY OP_CHECKSIG",
+              "scriptpubkey_type": "p2pkh",
+              "scriptpubkey_address": "1PvVJ5FvkNnsatmD4nfkb6j59CjKq7dxxy",
+              "value": 16610556
+          },
+          "scriptsig": "483045022100811726483f9c91dd91aa136c6ba4e97e6db79ef7026aa4fdd4216ea6a954f91a0220508b7fdf4078bf82114f7cfed5090b77114dec19b122870a34e562689441399d01210275f84bf0270b233f83be9b1ba6549e3281a133bfd93b24e1c16d80c4e742f09e",
+          "scriptsig_asm": "OP_PUSHBYTES_72 3045022100811726483f9c91dd91aa136c6ba4e97e6db79ef7026aa4fdd4216ea6a954f91a0220508b7fdf4078bf82114f7cfed5090b77114dec19b122870a34e562689441399d01 OP_PUSHBYTES_33 0275f84bf0270b233f83be9b1ba6549e3281a133bfd93b24e1c16d80c4e742f09e",
+          "is_coinbase": false,
+          "sequence": 4294967295
+      }
+  ],
+  "vout": [
+      {
+          "scriptpubkey": "0014ce6c0bb00482016d12657174b6468cd01df6421e",
+          "scriptpubkey_asm": "OP_0 OP_PUSHBYTES_20 ce6c0bb00482016d12657174b6468cd01df6421e",
+          "scriptpubkey_type": "v0_p2wpkh",
+          "scriptpubkey_address": "bc1qeekqhvqysgqk6yn9w96tv35v6qwlvss7vuvtj0",
+          "value": 6796193
+      },
+      {
+          "scriptpubkey": "76a914fb706ea28ba8f83e3cfa2fa1f3f01a6a613b94ca88ac",
+          "scriptpubkey_asm": "OP_DUP OP_HASH160 OP_PUSHBYTES_20 fb706ea28ba8f83e3cfa2fa1f3f01a6a613b94ca OP_EQUALVERIFY OP_CHECKSIG",
+          "scriptpubkey_type": "p2pkh",
+          "scriptpubkey_address": "1PvVJ5FvkNnsatmD4nfkb6j59CjKq7dxxy",
+          "value": 9813917
+      }
+  ],
+  "size": 223,
+  "weight": 892,
+  "sigops": 4,
+  "fee": 446,
+  "status": {
+      "confirmed": false
+  }
+}
--- a/frontend/cypress/fixtures/mainnet_mempoolInfo.json
+++ b/frontend/cypress/fixtures/mainnet_mempoolInfo.json
@@ -750,7 +750,7 @@
    },
    "backendInfo": {
      "hostname": "node205.tk7.mempool.space",
-      "version": "3.0.0-dev",
+      "version": "3.1.0-dev",
      "gitCommit": "abbc8a134",
      "lightning": false
    },
--- a/frontend/cypress/support/websocket.ts
+++ b/frontend/cypress/support/websocket.ts
@@ -96,6 +96,18 @@ export const emitMempoolInfo = ({
 				});
 				break;
 			}
+			case 'txPosition': {
+				cy.readFile('cypress/fixtures/accelerated_position.json', 'ascii').then((fixture) => {
+					win.mockSocket.send(JSON.stringify(fixture));
+				});
+				break;
+			}
+			case 'txPositionConfirmed': {
+				cy.readFile('cypress/fixtures/accelerated_position_confirmed.json', 'ascii').then((fixture) => {
+					win.mockSocket.send(JSON.stringify(fixture));
+				});
+				break;
+			}
 			default:
 				break;
 		}
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
  "name": "mempool-frontend",
-  "version": "3.0.0-dev",
+  "version": "3.1.0-dev",
  "description": "Bitcoin mempool visualizer and blockchain explorer backend",
  "license": "GNU Affero General Public License v3.0",
  "homepage": "https://mempool.space",
@@ -92,10 +92,10 @@
    "ngx-infinite-scroll": "^17.0.0",
    "qrcode": "1.5.1",
    "rxjs": "~7.8.1",
-    "esbuild": "^0.23.0",
+    "esbuild": "^0.24.0",
    "tinyify": "^4.0.0",
    "tlite": "^0.1.9",
-    "tslib": "~2.6.0",
+    "tslib": "~2.7.0",
    "zone.js": "~0.14.4"
  },
  "devDependencies": {
@@ -115,7 +115,7 @@
  "optionalDependencies": {
    "@cypress/schematic": "^2.5.0",
    "@types/cypress": "^1.1.3",
-    "cypress": "^13.13.0",
+    "cypress": "^13.14.0",
    "cypress-fail-on-console-error": "~5.1.0",
    "cypress-wait-until": "^2.0.1",
    "mock-socket": "~9.3.1",
--- a/frontend/src/app/app.constants.ts
+++ b/frontend/src/app/app.constants.ts
@@ -151,7 +151,7 @@ export const languages: Language[] = [
   { code: 'fr', name: 'Français' },        // French
 // { code: 'gl', name: 'Galego' },          // Galician
   { code: 'ko', name: '한국어' },          // Korean
-// { code: 'hr', name: 'Hrvatski' },        // Croatian
+   { code: 'hr', name: 'Hrvatski' },        // Croatian
 // { code: 'id', name: 'Bahasa Indonesia' },// Indonesian
   { code: 'hi', name: 'हिन्दी' },             // Hindi
   { code: 'ne', name: 'नेपाली' },            // Nepalese
--- a/frontend/src/app/bitcoin.utils.ts
+++ b/frontend/src/app/bitcoin.utils.ts
@@ -135,7 +135,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
    return;
  }
  const opN = ops.pop();
-  if (!opN.startsWith('OP_PUSHNUM_')) {
+  if (opN !== 'OP_0' && !opN.startsWith('OP_PUSHNUM_')) {
    return;
  }
  const n = parseInt(opN.match(/[0-9]+/)[0], 10);
@@ -152,7 +152,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
    }
  }
  const opM = ops.pop();
-  if (!opM.startsWith('OP_PUSHNUM_')) {
+  if (opM !== 'OP_0' && !opM.startsWith('OP_PUSHNUM_')) {
    return;
  }
  const m = parseInt(opM.match(/[0-9]+/)[0], 10);
--- a/frontend/src/app/components/about/about.component.html
+++ b/frontend/src/app/components/about/about.component.html
@@ -53,7 +53,7 @@
        <span>Spiral</span>
      </a>
      <a href="https://foundrydigital.com/" target="_blank" title="Foundry">
-        <svg xmlns="http://www.w3.org/2000/svg" id="b" data-name="Layer 2" style="zoom: 1;" width="32" height="76" viewBox="0 0 32 76">
+        <svg xmlns="http://www.w3.org/2000/svg" id="b" data-name="Layer 2" style="zoom: 1;" width="32" height="90" viewBox="0 -5 32 90" class="image">
          <defs>
            <style>
              .d {
@@ -125,17 +125,14 @@
        <span>Blockstream</span>
      </a>
      <a href="https://unchained.com/" target="_blank" title="Unchained">
-        <svg id="Layer_1" width="78" height="78" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 156.68 156.68"><defs><style>.cls-unchained-1{fill:#fff;}</style></defs><path class="cls-unchained-1" d="m78.34,0C35.07,0,0,35.07,0,78.34s35.07,78.34,78.34,78.34,78.34-35.07,78.34-78.34S121.6,0,78.34,0ZM20.23,109.5c-4.99-9.28-7.81-19.89-7.81-31.16C12.42,41.93,41.93,12.42,78.34,12.42c33.15,0,60.58,24.46,65.23,56.32h-37.48c-45.29,0-71.19,20.05-85.85,40.76Zm58.11,34.76c-12.42,0-24.04-3.44-33.96-9.41,3.94-8.85,9.11-18.7,15.84-28.9,20.99-31.8,52.2-31.19,76.49-31.19h7.45c.06,1.18.1,2.38.1,3.58,0,36.41-29.51,65.92-65.92,65.92Z"/><path class="cls-unchained-1" d="m91.98,42.4l-3.62-1.18c-3.94-1.29-7.03-4.38-8.32-8.32l-1.18-3.63c-.13-.39-.68-.39-.81,0l-1.18,3.63c-1.29,3.94-4.38,7.03-8.32,8.32l-3.62,1.18c-.39.13-.39.68,0,.81l3.62,1.18c3.94,1.29,7.03,4.38,8.32,8.32l1.18,3.63c.13.39.68.39.81,0l1.18-3.63c1.29-3.94,4.38-7.03,8.32-8.32l3.62-1.18c.39-.13.39-.68,0-.81Z"/></svg>
+        <svg id="Layer_1" width="78" height="78" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 156.68 156.68" class="image">
+          <defs><style>.cls-unchained-1{fill:#fff;}</style></defs><path class="cls-unchained-1" d="m78.34,0C35.07,0,0,35.07,0,78.34s35.07,78.34,78.34,78.34,78.34-35.07,78.34-78.34S121.6,0,78.34,0ZM20.23,109.5c-4.99-9.28-7.81-19.89-7.81-31.16C12.42,41.93,41.93,12.42,78.34,12.42c33.15,0,60.58,24.46,65.23,56.32h-37.48c-45.29,0-71.19,20.05-85.85,40.76Zm58.11,34.76c-12.42,0-24.04-3.44-33.96-9.41,3.94-8.85,9.11-18.7,15.84-28.9,20.99-31.8,52.2-31.19,76.49-31.19h7.45c.06,1.18.1,2.38.1,3.58,0,36.41-29.51,65.92-65.92,65.92Z"/><path class="cls-unchained-1" d="m91.98,42.4l-3.62-1.18c-3.94-1.29-7.03-4.38-8.32-8.32l-1.18-3.63c-.13-.39-.68-.39-.81,0l-1.18,3.63c-1.29,3.94-4.38,7.03-8.32,8.32l-3.62,1.18c-.39.13-.39.68,0,.81l3.62,1.18c3.94,1.29,7.03,4.38,8.32,8.32l1.18,3.63c.13.39.68.39.81,0l1.18-3.63c1.29-3.94,4.38-7.03,8.32-8.32l3.62-1.18c.39-.13.39-.68,0-.81Z"/>
+        </svg>
        <span>Unchained</span>
      </a>
-      <a href="https://gemini.com/" target="_blank" title="Gemini">
-        <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="360" height="360" viewBox="0 0 360 360" class="image">
-          <rect style="fill: black" width="360" height="360" />
-          <g transform="matrix(0.62 0 0 0.62 180 180)">
-            <path style="fill: rgb(0,220,250)" transform=" translate(-162, -162)" d="M 211.74 0 C 154.74 0 106.35 43.84 100.25 100.25 C 43.84 106.35 1.4210854715202004e-14 154.76 1.4210854715202004e-14 211.74 C 0.044122601308501076 273.7212006364817 50.27879936351834 323.95587739869154 112.26 324 C 169.26 324 217.84 280.15999999999997 223.75 223.75 C 280.15999999999997 217.65 324 169.24 324 112.26 C 323.95587739869154 50.278799363518324 273.72120063648174 0.04412260130848722 211.74 -1.4210854715202004e-14 z M 297.74 124.84 C 291.9644950552469 162.621439649343 262.2969457716857 192.26062994820046 224.51 198 L 224.51 124.84 z M 26.3 199.16 C 31.986912917108594 161.30935034910615 61.653433460549415 131.56986937804106 99.48999999999998 125.78999999999999 L 99.49 199 L 26.3 199 z M 198.21 224.51 C 191.87736076583954 267.0991541201681 155.312384597087 298.62923417787493 112.255 298.62923417787493 C 69.19761540291302 298.62923417787493 32.63263923416048 267.0991541201682 26.3 224.51 z M 199.16 124.83999999999999 L 199.16 199 L 124.84 199 L 124.84 124.84 z M 297.7 99.48999999999998 L 125.78999999999999 99.48999999999998 C 132.12263923416046 56.90084587983182 168.687615402913 25.37076582212505 211.745 25.37076582212505 C 254.80238459708698 25.37076582212505 291.3673607658395 56.900845879831834 297.7 99.49 z" stroke-linecap="round" />
-          </g>
-        </svg>
-        <span>Gemini</span>
+      <a href="https://bitkey.world/" target="_blank" title="Bitkey">
+        <img class="image" src="/resources/profile/bitkey.svg" />
+        <span>Bitkey</span>
      </a>
      <a href="https://bullbitcoin.com/" target="_blank" title="Bull Bitcoin">
        <svg aria-hidden="true" class="image" viewBox="0 -5 40 40" xmlns="http://www.w3.org/2000/svg">
@@ -150,7 +147,7 @@
        <span>Bull Bitcoin</span>
      </a>
      <a href="https://exodus.com/" target="_blank" title="Exodus">
-        <svg width="80" height="80" viewBox="0 0 500 500" fill="none" xmlns="http://www.w3.org/2000/svg">
+        <svg width="80" height="80" viewBox="0 0 500 500" fill="none" xmlns="http://www.w3.org/2000/svg" class="image">
          <circle cx="250" cy="250" r="250" fill="#1F2033"/>
          <g clip-path="url(#clip0_2_14)">
            <path d="M411.042 178.303L271.79 87V138.048L361.121 196.097L350.612 229.351H271.79V271.648H350.612L361.121 304.903L271.79 362.952V414L411.042 322.989L388.271 250.646L411.042 178.303Z" fill="url(#paint0_linear_2_14)"/>
@@ -191,6 +188,19 @@
        </svg>
        <span>Exodus</span>
      </a>
+      <a href="https://gemini.com/" target="_blank" title="Gemini">
+        <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="360" height="360" viewBox="0 0 360 360" class="image">
+          <rect style="fill: black" width="360" height="360" />
+          <g transform="matrix(0.62 0 0 0.62 180 180)">
+            <path style="fill: rgb(0,220,250)" transform=" translate(-162, -162)" d="M 211.74 0 C 154.74 0 106.35 43.84 100.25 100.25 C 43.84 106.35 1.4210854715202004e-14 154.76 1.4210854715202004e-14 211.74 C 0.044122601308501076 273.7212006364817 50.27879936351834 323.95587739869154 112.26 324 C 169.26 324 217.84 280.15999999999997 223.75 223.75 C 280.15999999999997 217.65 324 169.24 324 112.26 C 323.95587739869154 50.278799363518324 273.72120063648174 0.04412260130848722 211.74 -1.4210854715202004e-14 z M 297.74 124.84 C 291.9644950552469 162.621439649343 262.2969457716857 192.26062994820046 224.51 198 L 224.51 124.84 z M 26.3 199.16 C 31.986912917108594 161.30935034910615 61.653433460549415 131.56986937804106 99.48999999999998 125.78999999999999 L 99.49 199 L 26.3 199 z M 198.21 224.51 C 191.87736076583954 267.0991541201681 155.312384597087 298.62923417787493 112.255 298.62923417787493 C 69.19761540291302 298.62923417787493 32.63263923416048 267.0991541201682 26.3 224.51 z M 199.16 124.83999999999999 L 199.16 199 L 124.84 199 L 124.84 124.84 z M 297.7 99.48999999999998 L 125.78999999999999 99.48999999999998 C 132.12263923416046 56.90084587983182 168.687615402913 25.37076582212505 211.745 25.37076582212505 C 254.80238459708698 25.37076582212505 291.3673607658395 56.900845879831834 297.7 99.49 z" stroke-linecap="round" />
+          </g>
+        </svg>
+        <span>Gemini</span>
+      </a>
+      <a href="https://leather.io/" target="_blank" title="Leather">
+        <img class="image" src="/resources/profile/leather.svg" />
+        <span>Leather</span>
+      </a>
    </div>
  </div>

@@ -435,7 +445,7 @@
      Trademark Notice<br>
    </div>
    <p>
-      The Mempool Open Source Project&reg;, Mempool Accelerator&trade;, Mempool Enterprise&reg;, Mempool Liquidity&trade;, mempool.space&reg;, Be your own explorer&trade;, Explore the full Bitcoin ecosystem&reg;, Mempool Goggles&trade;, the mempool logo, the mempool Square logo, the mempool Blocks logo, the mempool Blocks 3 | 2 logo, the mempool.space Vertical Logo, and the mempool.space Horizontal logo are either registered trademarks or trademarks of Mempool Space K.K in Japan, the United States, and/or other countries.
+      The Mempool Open Source Project&reg;, Mempool Accelerator&trade;, Mempool Enterprise&reg;, Mempool Liquidity&trade;, mempool.space&reg;, Be your own explorer&trade;, Explore the full Bitcoin ecosystem&reg;, Mempool Goggles&trade;, the mempool Logo, the mempool Square Logo, the mempool block visualization Logo, the mempool Blocks Logo, the mempool transaction Logo, the mempool Blocks 3 | 2 Logo, the mempool research Logo, the mempool.space Vertical Logo, and the mempool.space Horizontal Logo are either registered trademarks or trademarks of Mempool Space K.K in Japan, the United States, and/or other countries.
    </p>
    <p>
      While our software is available under an open source software license, the copyright license does not include an implied right or license to use our trademarks. See our <a href="https://mempool.space/trademark-policy">Trademark Policy and Guidelines</a> for more details, published on &lt;https://mempool.space/trademark-policy&gt;.
--- a/frontend/src/app/components/about/about.component.scss
+++ b/frontend/src/app/components/about/about.component.scss
@@ -13,8 +13,6 @@

  .image.not-rounded {
    border-radius: 0;
-    width: 60px;
-    height: 60px;
  }

  .intro {
@@ -158,9 +156,8 @@
          margin: 40px 29px 10px;
          &.image.coldcard {
            border-radius: 0;
-            width: auto;
-            max-height: 50px;
-            margin: 40px 29px 14px 29px;
+            height: auto;
+            margin: 20px 29px 20px;
          }
        }
      }
@@ -254,3 +251,12 @@
  width: 64px;
  height: 64px;
 }
+
+.enterprise-sponsor {
+  .wrapper {
+    display: flex;
+    flex-wrap: wrap;
+    justify-content: center;
+    max-width: 800px; 
+  }
+}
--- a/frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.html
+++ b/frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.html
@@ -403,14 +403,14 @@
                }
                @if (canPayWithApplePay) {
                  @if (canPayWithCashapp) { <span class="mt-1 mb-1"></span> }
-                  <div class="paymentMethod mx-2" style="width: 200px; height: 55px">
-                  <img src="/resources/apple-pay.png" height=37 (click)="moveToStep('applepay')">
+                  <div class="paymentMethod mx-2" style="width: 200px; height: 55px" (click)="moveToStep('applepay')">
+                    <img src="/resources/apple-pay.png" height=37>
                  </div>
                }
                @if (canPayWithGooglePay) {
                  @if (canPayWithCashapp || canPayWithApplePay) { <span class="mt-1 mb-1"></span> }
-                  <div class="paymentMethod mx-2" style="width: 200px; height: 55px">
-                    <img src="/resources/google-pay.png" height=37 (click)="moveToStep('googlepay')">
+                  <div class="paymentMethod mx-2" style="width: 200px; height: 55px" (click)="moveToStep('googlepay')">
+                    <img src="/resources/google-pay.png" height=37>
                  </div>
                }
              </div>
@@ -525,7 +525,7 @@
      <div class="col-sm">
        <div class="d-flex flex-row flex-column justify-content-center align-items-center">
          <span i18n="accelerator.confirming-acceleration-with-miners">Confirming your acceleration with our mining pool partners...</span>
-          @if (timeSincePaid > 20000) {
+          @if (timeSincePaid > 30000) {
            <span i18n="accelerator.confirming-acceleration-with-miners">...sorry, this is taking longer than expected...</span>
          }
          <div class="m-2 spinner-border text-light" style="width: 25px; height: 25px"></div>
--- a/frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.ts
+++ b/frontend/src/app/components/accelerate-checkout/accelerate-checkout.component.ts
@@ -11,6 +11,7 @@ import { MiningStats } from '../../services/mining.service';
 import { IAuth, AuthServiceMempool } from '../../services/auth.service';
 import { EnterpriseService } from '../../services/enterprise.service';
 import { ApiService } from '../../services/api.service';
+import { isDevMode } from '@angular/core';

 export type PaymentMethod = 'balance' | 'bitcoin' | 'cashapp' | 'applePay' | 'googlePay';

@@ -74,6 +75,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
  @Output() changeMode = new EventEmitter<boolean>();

  calculating = true;
+  processing = false;
  selectedOption: 'wait' | 'accel';
  cantPayReason = '';
  quoteError = ''; // error fetching estimate or initial data
@@ -82,6 +84,13 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
  timePaid: number = 0; // time acceleration requested
  math = Math;
  isMobile: boolean = window.innerWidth <= 767.98;
+  isProdDomain = ['mempool.space',
+    'mempool-staging.va1.mempool.space',
+    'mempool-staging.fmt.mempool.space',
+    'mempool-staging.fra.mempool.space',
+    'mempool-staging.tk7.mempool.space',
+    'mempool-staging.sg1.mempool.space'
+   ].indexOf(document.location.hostname) > -1;

  private _step: CheckoutStep = 'summary';
  simpleMode: boolean = true;
@@ -188,9 +197,11 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
    if (changes.scrollEvent && this.scrollEvent) {
      this.scrollToElement('acceleratePreviewAnchor', 'start');
    }
-    if (changes.accelerating) {
-      if ((this.step === 'processing' || this.step === 'paid') && this.accelerating) {
+    if (changes.accelerating && this.accelerating) {
+      if (this.step === 'processing' || this.step === 'paid') {
        this.moveToStep('success');
+      } else { // Edge case where the transaction gets accelerated by someone else or on another session
+        this.closeModal();
      }
    }
  }
@@ -204,6 +215,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
      this.fetchEstimate();
    }
    if (this._step === 'checkout') {
+      this.insertSquare();
      this.enterpriseService.goal(8);
    }
    if (this._step === 'checkout' && this.canPayWithBitcoin) {
@@ -213,17 +225,14 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
      this.requestBTCPayInvoice();
    } else if (this._step === 'cashapp' && this.cashappEnabled) {
      this.loadingCashapp = true;
-      this.insertSquare();
      this.setupSquare();
      this.scrollToElementWithTimeout('confirm-title', 'center', 100);
    } else if (this._step === 'applepay' && this.applePayEnabled) {
      this.loadingApplePay = true;
-      this.insertSquare();
      this.setupSquare();
      this.scrollToElementWithTimeout('confirm-title', 'center', 100);
    } else if (this._step === 'googlepay' && this.googlePayEnabled) {
      this.loadingGooglePay = true;
-      this.insertSquare();
      this.setupSquare();
      this.scrollToElementWithTimeout('confirm-title', 'center', 100);
    } else if (this._step === 'paid') {
@@ -372,9 +381,10 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   * Account-based acceleration request
   */
  accelerateWithMempoolAccount(): void {
-    if (!this.canPay || this.calculating) {
+    if (!this.canPay || this.calculating || this.processing) {
      return;
    }
+    this.processing = true;
    if (this.accelerationSubscription) {
      this.accelerationSubscription.unsubscribe();
    }
@@ -384,6 +394,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
      this.accelerationUUID
    ).subscribe({
      next: () => {
+        this.processing = false;
        this.apiService.logAccelerationRequest$(this.tx.txid).subscribe();
        this.audioService.playSound('ascend-chime-cartoon');
        this.showSuccess = true;
@@ -391,6 +402,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
        this.moveToStep('paid');
      },
      error: (response) => {
+        this.processing = false;
        this.accelerateError = response.error;
      }
    });
@@ -400,16 +412,15 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   * Square
   */
  insertSquare(): void {
+    if (!this.isProdDomain && !isDevMode()) {
+      return;
+    }
    if (window['Square']) {
      return;
    }
    let statsUrl = 'https://sandbox.web.squarecdn.com/v1/square.js';
-    if (document.location.hostname === 'mempool-staging.fmt.mempool.space' ||
-        document.location.hostname === 'mempool-staging.va1.mempool.space' ||
-        document.location.hostname === 'mempool-staging.fra.mempool.space' ||
-        document.location.hostname === 'mempool-staging.tk7.mempool.space' ||
-        document.location.hostname === 'mempool.space') {
-      statsUrl = 'https://web.squarecdn.com/v1/square.js';
+    if (this.isProdDomain) {
+      statsUrl = '/square/v1/square.js';
    }

    (function(): void {
@@ -418,13 +429,16 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
    })();
  }
  setupSquare(): void {
+    if (!this.isProdDomain && !isDevMode()) {
+      return;
+    }
    const init = (): void => {
      this.initSquare();
    };

    if (!window['Square']) {
-      console.debug('Square.js failed to load properly. Retrying in 1 second.');
-      setTimeout(init, 1000);
+      console.debug('Square.js failed to load properly. Retrying.');
+      setTimeout(this.setupSquare.bind(this), 100);
    } else {
      init();
    }
@@ -458,10 +472,14 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   * APPLE PAY
   */
  async requestApplePayPayment(): Promise<void> {
+    if (this.processing) {
+      return;
+    }
    if (this.conversionsSubscription) {
      this.conversionsSubscription.unsubscribe();
    }

+    this.processing = true;
    this.conversionsSubscription = this.stateService.conversions$.subscribe(
      async (conversions) => {
        this.conversions = conversions;
@@ -486,6 +504,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
            console.error(`Unable to find apple pay button id='apple-pay-button'`);
            // Try again
            setTimeout(this.requestApplePayPayment.bind(this), 500);
+            this.processing = false;
            return;
          }
          this.loadingApplePay = false;
@@ -497,6 +516,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
              if (!card || !card.brand || !card.expMonth || !card.expYear || !card.last4) {
                console.error(`Cannot retreive payment card details`);
                this.accelerateError = 'apple_pay_no_card_details';
+                this.processing = false;
                return;
              }
              const cardTag = md5(`${card.brand}${card.expMonth}${card.expYear}${card.last4}`.toLowerCase());
@@ -508,6 +528,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
                this.accelerationUUID
              ).subscribe({
                next: () => {
+                  this.processing = false;
                  this.apiService.logAccelerationRequest$(this.tx.txid).subscribe();
                  this.audioService.playSound('ascend-chime-cartoon');
                  if (this.applePay) {
@@ -518,6 +539,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
                  }, 1000);
                },
                error: (response) => {
+                  this.processing = false;
                  this.accelerateError = response.error;
                  if (!(response.status === 403 && response.error === 'not_available')) {
                    setTimeout(() => {
@@ -529,6 +551,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
                }
              });
            } else {
+              this.processing = false;
              let errorMessage = `Tokenization failed with status: ${tokenResult.status}`;
              if (tokenResult.errors) {
                errorMessage += ` and errors: ${JSON.stringify(
@@ -539,6 +562,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
            }
          });
        } catch (e) {
+          this.processing = false;
          console.error(e);
        }
      }
@@ -549,10 +573,14 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   * GOOGLE PAY
   */
  async requestGooglePayPayment(): Promise<void> {
+    if (this.processing) {
+      return;
+    }
    if (this.conversionsSubscription) {
      this.conversionsSubscription.unsubscribe();
    }
-
+    
+    this.processing = true;
    this.conversionsSubscription = this.stateService.conversions$.subscribe(
      async (conversions) => {
        this.conversions = conversions;
@@ -587,6 +615,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
            if (!card || !card.brand || !card.expMonth || !card.expYear || !card.last4) {
              console.error(`Cannot retreive payment card details`);
              this.accelerateError = 'apple_pay_no_card_details';
+              this.processing = false;
              return;
            }
            const cardTag = md5(`${card.brand}${card.expMonth}${card.expYear}${card.last4}`.toLowerCase());
@@ -598,6 +627,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
              this.accelerationUUID
            ).subscribe({
              next: () => {
+                this.processing = false;
                this.apiService.logAccelerationRequest$(this.tx.txid).subscribe();
                this.audioService.playSound('ascend-chime-cartoon');
                if (this.googlePay) {
@@ -608,6 +638,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
                }, 1000);
              },
              error: (response) => {
+                this.processing = false;
                this.accelerateError = response.error;
                if (!(response.status === 403 && response.error === 'not_available')) {
                  setTimeout(() => {
@@ -619,6 +650,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
              }
            });
          } else {
+            this.processing = false;
            let errorMessage = `Tokenization failed with status: ${tokenResult.status}`;
            if (tokenResult.errors) {
              errorMessage += ` and errors: ${JSON.stringify(
@@ -636,10 +668,14 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
   * CASHAPP
   */
  async requestCashAppPayment(): Promise<void> {
+    if (this.processing) {
+      return;
+    }
    if (this.conversionsSubscription) {
      this.conversionsSubscription.unsubscribe();
    }

+    this.processing = true;
    this.conversionsSubscription = this.stateService.conversions$.subscribe(
      async (conversions) => {
        this.conversions = conversions;
@@ -656,11 +692,11 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
            amount: costUSD.toFixed(2),
            label: 'Total',
            pending: true,
-            productUrl: `${redirectHostname}/tracker/${this.tx.txid}`,
+            productUrl: `${redirectHostname}/tx/${this.tx.txid}`,
          }
        });
        this.cashAppPay = await this.payments.cashAppPay(paymentRequest, {
-          redirectURL: `${redirectHostname}/tracker/${this.tx.txid}`,
+          redirectURL: `${redirectHostname}/tx/${this.tx.txid}`,
          referenceId: `accelerator-${this.tx.txid.substring(0, 15)}-${Math.round(new Date().getTime() / 1000)}`
        });

@@ -670,6 +706,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
        this.cashAppPay.addEventListener('ontokenization', event => {
          const { tokenResult, error } = event.detail;
          if (error) {
+            this.processing = false;
            this.accelerateError = error;
          } else if (tokenResult.status === 'OK') {
            this.servicesApiService.accelerateWithCashApp$(
@@ -680,6 +717,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
              this.accelerationUUID
            ).subscribe({
              next: () => {
+                this.processing = false;
                this.apiService.logAccelerationRequest$(this.tx.txid).subscribe();
                this.audioService.playSound('ascend-chime-cartoon');
                if (this.cashAppPay) {
@@ -694,6 +732,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
                }, 1000);
              },
              error: (response) => {
+                this.processing = false;
                this.accelerateError = response.error;
                if (!(response.status === 403 && response.error === 'not_available')) {
                  setTimeout(() => {
@@ -797,7 +836,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
  }

  get canPayWithCashapp(): boolean {
-    if (!this.cashappEnabled || !this.conversions) {
+    if (!this.cashappEnabled || !this.conversions || (!this.isProdDomain && !isDevMode())) {
      return false;
    }

@@ -813,7 +852,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
  }

  get canPayWithApplePay(): boolean {
-    if (!this.applePayEnabled || !this.conversions) {
+    if (!this.applePayEnabled || !this.conversions || (!this.isProdDomain && !isDevMode())) {
      return false;
    }

@@ -829,7 +868,7 @@ export class AccelerateCheckout implements OnInit, OnDestroy {
  }

  get canPayWithGooglePay(): boolean {
-    if (!this.googlePayEnabled || !this.conversions) {
+    if (!this.googlePayEnabled || !this.conversions || (!this.isProdDomain && !isDevMode())) {
      return false;
    }

--- a/frontend/src/app/components/accelerate-checkout/accelerate-fee-graph.component.html
+++ b/frontend/src/app/components/accelerate-checkout/accelerate-fee-graph.component.html
@@ -12,7 +12,7 @@
          </p>
        </div>
        <div class="spacer"></div>
-        <span class="fee">{{ bar.class === 'tx' ? '' : '+' }}{{ bar.fee | number }} <span class="symbol" i18n="shared.sat|sat">sat</span></span>
+        <span class="fee">{{ bar.class === 'tx' ? '' : '+' }}{{ bar.fee | number }} <span class="symbol" i18n="shared.sats">sats</span></span>
        <div class="spacer"></div>
        <div class="spacer"></div>
      </div>
--- a/frontend/src/app/components/acceleration-timeline/acceleration-timeline-tooltip.component.html
+++ b/frontend/src/app/components/acceleration-timeline/acceleration-timeline-tooltip.component.html
@@ -21,39 +21,40 @@
      </tr>
      <tr *ngIf="accelerationInfo.fee">
        <td class="label" i18n="transaction.fee|Transaction fee">Fee</td>
-        <td class="value">{{ accelerationInfo.fee | number }} <span class="symbol" i18n="shared.sat|sat">sat</span></td>
+        <td class="value">{{ accelerationInfo.fee | number }} <span class="symbol" i18n="shared.sats">sats</span></td>
      </tr>
      <tr *ngIf="accelerationInfo.bidBoost >= 0 || accelerationInfo.feeDelta">
        <td class="label" i18n="transaction.out-of-band-fees">Out-of-band fees</td>
        @if (accelerationInfo.status === 'accelerated') {
-          <td style="color: #905cf4;" class="value">{{ accelerationInfo.feeDelta | number }} <span class="symbol" i18n="shared.sat|sat">sat</span></td>
+          <td class="value oobFees">{{ accelerationInfo.feeDelta | number }} <span class="symbol" i18n="shared.sats">sats</span></td>
        } @else {
-          <td style="color: #905cf4;" class="value">{{ accelerationInfo.bidBoost | number }} <span class="symbol" i18n="shared.sat|sat">sat</span></td>
+          <td class="value oobFees">{{ accelerationInfo.bidBoost | number }} <span class="symbol" i18n="shared.sats">sats</span></td>
        }
      </tr>
      <tr *ngIf="accelerationInfo.fee && accelerationInfo.weight">
        @if (accelerationInfo.status === 'seen') {
-          <td class="label" i18n="transaction.fee-rate">Fee rate</td>
+          <td class="label" i18n="transaction.fee-rate|Transaction fee rate">Fee rate</td>
          <td class="value"><app-fee-rate [fee]="accelerationInfo.fee" [weight]="accelerationInfo.weight"></app-fee-rate></td>
        } @else if (accelerationInfo.status === 'accelerated' || accelerationInfo.status === 'mined') {
          <td class="label" i18n="transaction.accelerated-fee-rate|Accelerated transaction fee rate">Accelerated fee rate</td>
          @if (accelerationInfo.status === 'accelerated') {
-            <td class="value"><app-fee-rate [fee]="accelerationInfo.fee + (accelerationInfo.feeDelta || 0)" [weight]="accelerationInfo.weight"></app-fee-rate></td>
+            <td class="value oobFees"><app-fee-rate [fee]="accelerationInfo.fee + (accelerationInfo.feeDelta || 0)" [weight]="accelerationInfo.weight"></app-fee-rate></td>
          } @else {
-            <td class="value"><app-fee-rate [fee]="accelerationInfo.fee + (accelerationInfo.bidBoost || 0)" [weight]="accelerationInfo.weight"></app-fee-rate></td>
+            <td class="value oobFees"><app-fee-rate [fee]="accelerationInfo.fee + (accelerationInfo.bidBoost || 0)" [weight]="accelerationInfo.weight"></app-fee-rate></td>
          }
        }
      </tr>
      <tr *ngIf="['accelerated', 'mined'].includes(accelerationInfo.status) && hasPoolsData()">
        <td class="label" i18n="transaction.accelerated-by-hashrate|Accelerated to hashrate">Accelerated by</td>
        <td class="value" *ngIf="accelerationInfo.pools">
-          <ng-container *ngFor="let pool of accelerationInfo.pools">
+          <ng-container *ngFor="let pool of accelerationInfo.pools; let i = index;">
            <img *ngIf="accelerationInfo.poolsData[pool]" 
              class="pool-logo" 
              [style.opacity]="accelerationInfo?.minedByPoolUniqueId && pool !== accelerationInfo?.minedByPoolUniqueId ? '0.3' : '1'"
              [src]="'/resources/mining-pools/' + accelerationInfo.poolsData[pool].slug + '.svg'" 
              onError="this.src = '/resources/mining-pools/default.svg'" 
              [alt]="'Logo of ' + pool.name + ' mining pool'">
+            <br *ngIf="i % 6 === 5">
          </ng-container>
        </td>
      </tr>
--- a/frontend/src/app/components/acceleration-timeline/acceleration-timeline-tooltip.component.scss
+++ b/frontend/src/app/components/acceleration-timeline/acceleration-timeline-tooltip.component.scss
@@ -23,6 +23,7 @@

  .label {
    padding-right: 30px;
+    vertical-align: top;
  }

  .pool-logo {
@@ -30,6 +31,11 @@
    height: 22px;
    position: relative;
    top: -1px;
-    margin-right: 3px;
+    margin-right: 4px;
+    margin-bottom: 4px;
+  }
+
+  .oobFees {
+    color: #905cf4;
  }
 }
--- a/frontend/src/app/components/acceleration/acceleration-fees-graph/acceleration-fees-graph.component.ts
+++ b/frontend/src/app/components/acceleration/acceleration-fees-graph/acceleration-fees-graph.component.ts
@@ -264,7 +264,7 @@ export class AccelerationFeesGraphComponent implements OnInit, OnChanges, OnDest
          type: 'bar',
          barWidth: '90%',
          large: true,
-          barMinHeight: 1,
+          barMinHeight: 3,
        },
      ],
      dataZoom: (this.widget || data.length === 0 )? undefined : [{
--- a/frontend/src/app/components/acceleration/accelerations-list/accelerations-list.component.html
+++ b/frontend/src/app/components/acceleration/accelerations-list/accelerations-list.component.html
@@ -4,8 +4,8 @@

  <div class="clearfix"></div>

-  <div class="acceleration-list" *ngIf="accelerationList$ | async as accelerations">
-    <table *ngIf="!accelerations || accelerations.length; else noData" class="table table-borderless table-fixed">
+  <div class="acceleration-list">
+    <table *ngIf="nonEmptyAccelerations; else noData" class="table table-borderless table-fixed">
      <thead>
        <th class="txid text-left" i18n="dashboard.latest-transactions.txid">TXID</th>
        <ng-container *ngIf="pending">
@@ -21,7 +21,7 @@
          <th class="date text-right" i18n="accelerator.requested" *ngIf="!this.widget">Requested</th>
        </ng-container>
      </thead>
-      <tbody *ngIf="accelerations; else skeleton" [style]="isLoading ? 'opacity: 0.75' : ''">
+      <tbody *ngIf="accelerationList$ | async as accelerations; else skeleton" [style]="isLoading ? 'opacity: 0.75' : ''">
        <tr *ngFor="let acceleration of accelerations; let i= index;">
          <td class="txid text-left">
            <a [routerLink]="['/tx' | relativeUrl, acceleration.txid]">
@@ -33,7 +33,7 @@
              <app-fee-rate [fee]="acceleration.effectiveFee" [weight]="acceleration.effectiveVsize * 4"></app-fee-rate>
            </td>
            <td class="bid text-right">
-              {{ (acceleration.feeDelta) | number }} <span class="symbol" i18n="shared.sat|sat">sat</span>
+              {{ (acceleration.feeDelta) | number }} <span class="symbol" i18n="shared.sats">sats</span>
            </td>
            <td class="time text-right">
              <app-time kind="since" [time]="acceleration.added" [fastRender]="true" [showTooltip]="true"></app-time>
@@ -41,7 +41,7 @@
          </ng-container>
          <ng-container *ngIf="!pending">
            <td *ngIf="acceleration.boost != null" class="fee text-right">
-              {{ acceleration.boost | number }} <span class="symbol" i18n="shared.sat|sat">sat</span>
+              {{ acceleration.boost | number }} <span class="symbol" i18n="shared.sats">sats</span>
            </td>
            <td *ngIf="acceleration.boost == null" class="fee text-right">
              ~
@@ -62,9 +62,9 @@
            </td>
            <td class="status text-right">
              <span *ngIf="acceleration.status === 'accelerating'" class="badge badge-warning" i18n="accelerator.pending">Pending</span>
-              <span *ngIf="acceleration.status.includes('completed') && acceleration.minedByPoolUniqueId && pools[acceleration.minedByPoolUniqueId]" class="badge badge-success" i18n="accelerator.completed">Completed <span *ngIf="acceleration.status === 'completed_provisional'">🔄</span></span>
-              <span *ngIf="acceleration.status.includes('completed') && (!acceleration.minedByPoolUniqueId || !pools[acceleration.minedByPoolUniqueId])" class="badge badge-success" i18n="accelerator.mined">Mined <span *ngIf="acceleration.status === 'completed_provisional'">🔄</span></span>
-              <span *ngIf="acceleration.status.includes('failed')" class="badge badge-danger" i18n="accelerator.canceled">Failed <span *ngIf="acceleration.status === 'failed_provisional'">🔄</span></span>
+              <span *ngIf="acceleration.status.includes('completed') && acceleration.minedByPoolUniqueId && pools[acceleration.minedByPoolUniqueId]" class="badge badge-success"><ng-container i18n="accelerator.completed">Completed</ng-container><span *ngIf="acceleration.status === 'completed_provisional'">&nbsp;⌛</span></span>
+              <span *ngIf="acceleration.status.includes('completed') && (!acceleration.minedByPoolUniqueId || !pools[acceleration.minedByPoolUniqueId])" class="badge badge-success"><ng-container i18n="transaction.rbf.mined">Mined</ng-container><span *ngIf="acceleration.status === 'completed_provisional'">&nbsp;⌛</span></span>
+              <span *ngIf="acceleration.status.includes('failed')" class="badge badge-danger"><ng-container i18n="accelerator.canceled">Failed</ng-container><span *ngIf="acceleration.status === 'failed_provisional'">&nbsp;⌛</span></span>
            </td>
            <td class="date text-right" *ngIf="!this.widget">
              <app-time kind="since" [time]="acceleration.added" [fastRender]="true" [showTooltip]="true"></app-time>
@@ -73,22 +73,47 @@
        </tr>
      </tbody>
      <ng-template #skeleton>
-        <tbody>
-          <tr *ngFor="let item of skeletonLines">
-            <td class="txid text-left">
-              <span class="skeleton-loader" style="max-width: 75px"></span>
-            </td>
-            <td class="fee text-right">
-              <span class="skeleton-loader" style="max-width: 75px"></span>
-            </td>
-            <td class="fee-delta text-right">
-              <span class="skeleton-loader" style="max-width: 75px"></span>
-            </td>
-            <td class="status text-right">
-              <span class="skeleton-loader" style="max-width: 75px"></span>
-            </td>
-          </tr>
-        </tbody>
+        @if (!pending) {
+          <tbody>
+            <tr *ngFor="let item of skeletonLines">
+              <td class="txid text-left">
+                <span class="skeleton-loader" style="max-width: 200px"></span>
+              </td>
+              <td class="fee text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="block text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="pool text-right" *ngIf="!this.widget">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="status text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="date text-right" *ngIf="!this.widget">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+            </tr>
+          </tbody>
+        } @else {
+          <tbody>
+            <tr *ngFor="let item of skeletonLines">
+              <td class="txid text-left">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="fee-rate text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="bid text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+              <td class="time text-right">
+                <span class="skeleton-loader" style="max-width: 100px"></span>
+              </td>
+            </tr>
+          </tbody>
+        }
      </ng-template>
    </table>

--- a/frontend/src/app/components/acceleration/accelerations-list/accelerations-list.component.ts
+++ b/frontend/src/app/components/acceleration/accelerations-list/accelerations-list.component.ts
@@ -1,5 +1,5 @@
 import { Component, OnInit, ChangeDetectionStrategy, Input, ChangeDetectorRef, OnDestroy, Inject, LOCALE_ID } from '@angular/core';
-import { BehaviorSubject, Observable, Subscription, catchError, filter, of, switchMap, tap, throttleTime } from 'rxjs';
+import { BehaviorSubject, Observable, Subscription, catchError, combineLatest, filter, of, switchMap, tap, throttleTime, timer } from 'rxjs';
 import { Acceleration, BlockExtended, SinglePoolStats } from '../../../interfaces/node-api.interface';
 import { StateService } from '../../../services/state.service';
 import { WebsocketService } from '../../../services/websocket.service';
@@ -32,6 +32,7 @@ export class AccelerationsListComponent implements OnInit, OnDestroy {
  dir: 'rtl' | 'ltr' = 'ltr';
  paramSubscription: Subscription;
  pools: { [id: number]: SinglePoolStats } = {};
+  nonEmptyAccelerations: boolean = true;

  constructor(
    private servicesApiService: ServicesApiServices,
@@ -50,12 +51,21 @@ export class AccelerationsListComponent implements OnInit, OnDestroy {
  }

  ngOnInit(): void {
+    this.miningService.getPools().subscribe(pools => {
+      for (const pool of pools) {
+        this.pools[pool.unique_id] = pool;
+      }
+    });
+
    if (!this.widget) {
      this.websocketService.want(['blocks']);
      this.seoService.setTitle($localize`:@@02573b6980a2d611b4361a2595a4447e390058cd:Accelerations`);

-      this.paramSubscription = this.route.params.pipe(
-        tap(params => {
+      this.paramSubscription = combineLatest([
+        this.route.params,
+        timer(0),
+      ]).pipe(
+        tap(([params]) => {
          this.page = +params['page'] || 1;
          this.pageSubject.next(this.page);
        })
@@ -82,12 +92,6 @@ export class AccelerationsListComponent implements OnInit, OnDestroy {
      ).subscribe(() => {
        this.pageChange(this.page);
      });
-
-      this.miningService.getPools().subscribe(pools => {
-        for (const pool of pools) {
-          this.pools[pool.unique_id] = pool;
-        }
-      });
    }

    this.skeletonLines = this.widget === true ? [...Array(6).keys()] : [...Array(15).keys()];
@@ -115,6 +119,7 @@ export class AccelerationsListComponent implements OnInit, OnDestroy {
            for (const acc of accelerations) {
              acc.boost = acc.boostCost != null ? acc.boostCost : acc.bidBoost;
            }
+            this.nonEmptyAccelerations = accelerations.length > 0;
            if (this.widget) {
              return of(accelerations.slice(0, 6));
            } else {
--- a/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.html
+++ b/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.html
@@ -1,7 +1,7 @@
@if (chartOnly) {
  <ng-container *ngTemplateOutlet="pieChart"></ng-container>
 } @else {
-<table>
+<table style="width: 100%;">
  <tbody>
    <tr>
      <td class="td-width field-label" [class]="chartPositionLeft ? 'chart-left' : ''" i18n="transaction.accelerated-to-feerate|Accelerated to feerate">Accelerated to</td>
@@ -10,10 +10,10 @@
      </td>
      <td class="field-value" [class]="chartPositionLeft ? 'chart-left' : ''">
        <div class="effective-fee-container">
-          @if (accelerationInfo?.acceleratedFeeRate && (!tx.effectiveFeePerVsize || accelerationInfo.acceleratedFeeRate >= tx.effectiveFeePerVsize)) {
-            <app-fee-rate [fee]="accelerationInfo.acceleratedFeeRate"></app-fee-rate>
+          @if (accelerationInfo?.acceleratedFeeRate && (!effectiveFeeRate || accelerationInfo.acceleratedFeeRate >= effectiveFeeRate)) {
+            <app-fee-rate class="oobFees" [fee]="accelerationInfo.acceleratedFeeRate"></app-fee-rate>
          } @else {
-            <app-fee-rate [fee]="tx.effectiveFeePerVsize"></app-fee-rate>
+            <app-fee-rate class="oobFees" [fee]="effectiveFeeRate"></app-fee-rate>
          }
        </div>
      </td>
--- a/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.scss
+++ b/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.scss
@@ -61,4 +61,8 @@
  & > div, & > div > svg {
    overflow: visible !important;
  }
+}
+
+.oobFees {
+  color: #905cf4;
 }
--- a/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.ts
+++ b/frontend/src/app/components/acceleration/active-acceleration-box/active-acceleration-box.component.ts
@@ -1,4 +1,4 @@
-import { Component, ChangeDetectionStrategy, Input, Output, OnChanges, SimpleChanges, EventEmitter } from '@angular/core';
+import { Component, ChangeDetectionStrategy, Input, Output, OnChanges, SimpleChanges, EventEmitter, ChangeDetectorRef } from '@angular/core';
 import { Transaction } from '../../../interfaces/electrs.interface';
 import { Acceleration, SinglePoolStats } from '../../../interfaces/node-api.interface';
 import { EChartsOption, PieSeriesOption } from '../../../graphs/echarts';
@@ -23,7 +23,8 @@ function toRGB({r,g,b}): string {
  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class ActiveAccelerationBox implements OnChanges {
-  @Input() tx: Transaction;
+  @Input() acceleratedBy?: number[];
+  @Input() effectiveFeeRate?: number;
  @Input() accelerationInfo: Acceleration;
  @Input() miningStats: MiningStats;
  @Input() pools: number[];
@@ -41,10 +42,12 @@ export class ActiveAccelerationBox implements OnChanges {
  timespan = '';
  chartInstance: any = undefined;

-  constructor() {}
+  constructor(
+    private cd: ChangeDetectorRef,
+  ) {}

  ngOnChanges(changes: SimpleChanges): void {
-    const pools = this.pools || this.accelerationInfo?.pools || this.tx.acceleratedBy;
+    const pools = this.pools || this.accelerationInfo?.pools || this.acceleratedBy;
    if (pools && this.miningStats) {
      this.prepareChartOptions(pools);
    }
@@ -67,12 +70,17 @@ export class ActiveAccelerationBox implements OnChanges {

    const acceleratingPools = (poolList || []).filter(id => pools[id]).sort((a,b) => pools[a].lastEstimatedHashrate - pools[b].lastEstimatedHashrate);
    const totalAcceleratedHashrate = acceleratingPools.reduce((total, pool) => total + pools[pool].lastEstimatedHashrate, 0);
+    // Find the first pool with at least 1% of the total network hashrate
+    const firstSignificantPool = acceleratingPools.findIndex(pool => pools[pool].lastEstimatedHashrate > this.miningStats.lastEstimatedHashrate / 100);
+    const numSignificantPools = acceleratingPools.length - firstSignificantPool;
    acceleratingPools.forEach((poolId, index) => {
      const pool = pools[poolId];
      const poolShare = ((pool.lastEstimatedHashrate / this.miningStats.lastEstimatedHashrate) * 100).toFixed(1);
      data.push(getDataItem(
        pool.lastEstimatedHashrate,
-        toRGB(lighten({ r: 147, g: 57, b: 244 }, index * .08)),
+        index >= firstSignificantPool
+          ? toRGB(lighten({ r: 147, g: 57, b: 244 }, 1 - (index - firstSignificantPool) / (numSignificantPools - 1)))
+          : 'white',
        `<b style="color: white">${pool.name} (${poolShare}%)</b>`,
        true,
      ) as PieSeriesOption);
@@ -127,6 +135,7 @@ export class ActiveAccelerationBox implements OnChanges {
        }
      ]
    };
+    this.cd.markForCheck();
  }

  onChartInit(ec) {
--- a/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.html
+++ b/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.html
@@ -0,0 +1,5 @@
+<div class="sparkles" #sparkleAnchor>
+  <div *ngFor="let sparkle of sparkles" class="sparkle" [style]="sparkle.style">
+    <span class="inner-sparkle" [style]="sparkle.rotation">+</span>
+  </div>
+</div>
--- a/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.scss
+++ b/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.scss
@@ -0,0 +1,45 @@
+.sparkles {
+  position: absolute;
+  top: var(--block-size);
+  height: 50px;
+  right: 0;
+}
+
+.sparkle {
+  position: absolute;
+  color: rgba(152, 88, 255, 0.75);
+  opacity: 0;
+  transform: scale(0.8) rotate(0deg);
+  animation: pop ease 2000ms forwards, sparkle ease 500ms infinite;
+}
+
+.inner-sparkle {
+  display: block;
+}
+
+@keyframes pop {
+  0% {
+    transform: scale(0.8) rotate(0deg);
+    opacity: 0;
+  }
+  20% {
+    transform: scale(1) rotate(72deg);
+    opacity: 1;
+  }
+  100% {
+    transform: scale(0) rotate(360deg);
+    opacity: 0;
+  }
+}
+
+@keyframes sparkle {
+  0% {
+    color: rgba(152, 88, 255, 0.75);
+  }
+  50% {
+    color: rgba(198, 162, 255, 0.75);
+  }
+  100% {
+    color: rgba(152, 88, 255, 0.75);
+  }
+}
--- a/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.ts
+++ b/frontend/src/app/components/acceleration/sparkles/acceleration-sparkles.component.ts
@@ -0,0 +1,73 @@
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, Input, OnChanges, SimpleChanges, ViewChild } from '@angular/core';
+
+@Component({
+  selector: 'app-acceleration-sparkles',
+  templateUrl: './acceleration-sparkles.component.html',
+  styleUrls: ['./acceleration-sparkles.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class AccelerationSparklesComponent implements OnChanges {
+  @Input() arrow: ElementRef<HTMLDivElement>;
+  @Input() run: boolean = false;
+
+  @ViewChild('sparkleAnchor')
+  sparkleAnchor: ElementRef<HTMLDivElement>;
+
+  constructor(
+    private cd: ChangeDetectorRef,
+  ) {}
+
+  endTimeout: any;
+  lastSparkle: number = 0;
+  sparkleWidth: number = 0;
+  sparkles: any[] = [];
+
+  ngOnChanges(changes: SimpleChanges): void {
+    if (changes.run) {
+      if (this.endTimeout) {
+        clearTimeout(this.endTimeout);
+        this.endTimeout = null;
+      }
+      if (this.run) {
+        this.doSparkle();
+      } else {
+        this.endTimeout = setTimeout(() => {
+          this.sparkles = [];
+        }, 2000);
+      }
+    }
+  }
+
+  doSparkle(): void {
+    if (this.run) {
+      const now = performance.now();
+      if (now - this.lastSparkle > 20) {
+        this.lastSparkle = now;
+        if (this.arrow?.nativeElement && this.sparkleAnchor?.nativeElement) {
+          const anchor = this.sparkleAnchor.nativeElement.getBoundingClientRect().right;
+          const right = this.arrow.nativeElement.getBoundingClientRect().right;
+          const dx = (anchor - right) + 30;
+          const numSparkles = Math.ceil(Math.random() * 3);
+          for (let i = 0; i < numSparkles; i++) {
+            this.sparkles.push({
+              style: {
+                right: (dx + (Math.random() * 10)) + 'px',
+                top: (15 + (Math.random() * 30)) + 'px',
+              },
+              rotation: {
+                transform: `rotate(${Math.random() * 360}deg)`,
+              }
+            });
+          }
+          while (this.sparkles.length > 200) {
+            this.sparkles.shift();
+          }
+          this.cd.markForCheck();
+        }
+      }
+      requestAnimationFrame(() => {
+        this.doSparkle();
+      });
+    }
+  }
+}
--- a/frontend/src/app/components/address-labels/address-labels.component.ts
+++ b/frontend/src/app/components/address-labels/address-labels.component.ts
@@ -55,7 +55,7 @@ export class AddressLabelsComponent implements OnChanges {
  }

  handleVin() {
-    const address = new AddressTypeInfo(this.network || 'mainnet', this.vin.prevout?.scriptpubkey_address, this.vin.prevout?.scriptpubkey_type as AddressType, [this.vin])
+    const address = new AddressTypeInfo(this.network || 'mainnet', this.vin.prevout?.scriptpubkey_address, this.vin.prevout?.scriptpubkey_type as AddressType, [this.vin]);
    if (address?.scripts.size) {
      const script = address?.scripts.values().next().value;
      if (script.template?.label) {
--- a/frontend/src/app/components/address/address.component.html
+++ b/frontend/src/app/components/address/address.component.html
@@ -94,6 +94,20 @@
      </div>
    </ng-container>

+    <ng-container *ngIf="(stateService.backend$ | async) === 'esplora' && address && utxos && utxos.length > 2">
+      <br>
+      <div class="title-tx">
+        <h2 class="text-left" i18n="address.unspent-outputs">Unspent Outputs</h2>
+      </div>
+      <div class="box">
+        <div class="row">
+          <div class="col-md">
+            <app-utxo-graph [utxos]="utxos" left="80" />
+          </div>
+        </div>
+      </div>
+    </ng-container>
+
    <br>
    <div class="title-tx">
      <h2 class="text-left">
--- a/frontend/src/app/components/address/address.component.ts
+++ b/frontend/src/app/components/address/address.component.ts
@@ -2,12 +2,12 @@ import { Component, OnInit, OnDestroy, HostListener } from '@angular/core';
 import { ActivatedRoute, ParamMap } from '@angular/router';
 import { ElectrsApiService } from '../../services/electrs-api.service';
 import { switchMap, filter, catchError, map, tap } from 'rxjs/operators';
-import { Address, ChainStats, Transaction, Vin } from '../../interfaces/electrs.interface';
+import { Address, ChainStats, Transaction, Utxo, Vin } from '../../interfaces/electrs.interface';
 import { WebsocketService } from '../../services/websocket.service';
 import { StateService } from '../../services/state.service';
 import { AudioService } from '../../services/audio.service';
 import { ApiService } from '../../services/api.service';
-import { of, merge, Subscription, Observable } from 'rxjs';
+import { of, merge, Subscription, Observable, forkJoin } from 'rxjs';
 import { SeoService } from '../../services/seo.service';
 import { seoDescriptionNetwork } from '../../shared/common.utils';
 import { AddressInformation } from '../../interfaces/node-api.interface';
@@ -104,6 +104,7 @@ export class AddressComponent implements OnInit, OnDestroy {
  addressString: string;
  isLoadingAddress = true;
  transactions: Transaction[];
+  utxos: Utxo[];
  isLoadingTransactions = true;
  retryLoadMore = false;
  error: any;
@@ -159,6 +160,7 @@ export class AddressComponent implements OnInit, OnDestroy {
          this.address = null;
          this.isLoadingTransactions = true;
          this.transactions = null;
+          this.utxos = null;
          this.addressInfo = null;
          this.exampleChannel = null;
          document.body.scrollTo(0, 0);
@@ -212,11 +214,19 @@ export class AddressComponent implements OnInit, OnDestroy {
          this.updateChainStats();
          this.isLoadingAddress = false;
          this.isLoadingTransactions = true;
-          return address.is_pubkey
+          const utxoCount = this.chainStats.utxos + this.mempoolStats.utxos;
+          return forkJoin([
+            address.is_pubkey
              ? this.electrsApiService.getScriptHashTransactions$((address.address.length === 66 ? '21' : '41') + address.address + 'ac')
-              : this.electrsApiService.getAddressTransactions$(address.address);
+              : this.electrsApiService.getAddressTransactions$(address.address),
+            utxoCount >= 2 && utxoCount <= 500 ? (address.is_pubkey
+              ? this.electrsApiService.getScriptHashUtxos$((address.address.length === 66 ? '21' : '41') + address.address + 'ac')
+              : this.electrsApiService.getAddressUtxos$(address.address)) : of([])
+          ]);
        }),
-        switchMap((transactions) => {
+        switchMap(([transactions, utxos]) => {
+          this.utxos = utxos;
+
          this.tempTransactions = transactions;
          if (transactions.length) {
            this.lastTransactionTxId = transactions[transactions.length - 1].txid;
@@ -334,6 +344,23 @@ export class AddressComponent implements OnInit, OnDestroy {
      }
    }

+    // update utxos in-place
+    for (const vin of transaction.vin) {
+      const utxoIndex = this.utxos.findIndex((utxo) => utxo.txid === vin.txid && utxo.vout === vin.vout);
+      if (utxoIndex !== -1) {
+        this.utxos.splice(utxoIndex, 1);
+      }
+    }
+    for (const [index, vout] of transaction.vout.entries()) {
+      if (vout.scriptpubkey_address === this.address.address) {
+        this.utxos.push({
+          txid: transaction.txid,
+          vout: index,
+          value: vout.value,
+          status: JSON.parse(JSON.stringify(transaction.status)),
+        });
+      }
+    }
    return true;
  }

@@ -346,6 +373,26 @@ export class AddressComponent implements OnInit, OnDestroy {
    this.transactions.splice(index, 1);
    this.transactions = this.transactions.slice();

+    // update utxos in-place
+    for (const vin of transaction.vin) {
+      if (vin.prevout?.scriptpubkey_address === this.address.address) {
+        this.utxos.push({
+          txid: vin.txid,
+          vout: vin.vout,
+          value: vin.prevout.value,
+          status: { confirmed: true }, // Assuming the input was confirmed
+        });
+      }
+    }
+    for (const [index, vout] of transaction.vout.entries()) {
+      if (vout.scriptpubkey_address === this.address.address) {
+        const utxoIndex = this.utxos.findIndex((utxo) => utxo.txid === transaction.txid && utxo.vout === index);
+        if (utxoIndex !== -1) {
+          this.utxos.splice(utxoIndex, 1);
+        }
+      }
+    }
+
    return true;
  }

--- a/frontend/src/app/components/amount-selector/amount-selector.component.html
+++ b/frontend/src/app/components/amount-selector/amount-selector.component.html
@@ -0,0 +1,7 @@
+<div [formGroup]="amountForm" class="text-small text-center">
+    <select formControlName="mode" class="custom-select custom-select-sm form-control-secondary form-control mx-auto" style="width: 70px;" (change)="changeMode()">
+        <option value="btc" i18n="shared.btc|BTC">BTC</option>
+        <option value="sats" i18n="shared.sats">sats</option>
+        <option value="fiat" i18n="shared.fiat|Fiat">Fiat</option>
+    </select>
+</div>
--- a/frontend/src/app/components/amount-selector/amount-selector.component.scss
+++ b/frontend/src/app/components/amount-selector/amount-selector.component.scss
--- a/frontend/src/app/components/amount-selector/amount-selector.component.ts
+++ b/frontend/src/app/components/amount-selector/amount-selector.component.ts
@@ -0,0 +1,36 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
+import { StorageService } from '../../services/storage.service';
+import { StateService } from '../../services/state.service';
+
+@Component({
+  selector: 'app-amount-selector',
+  templateUrl: './amount-selector.component.html',
+  styleUrls: ['./amount-selector.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush
+})
+export class AmountSelectorComponent implements OnInit {
+  amountForm: UntypedFormGroup;
+  modes = ['btc', 'sats', 'fiat'];
+
+  constructor(
+    private formBuilder: UntypedFormBuilder,
+    private stateService: StateService,
+    private storageService: StorageService,
+  ) { }
+
+  ngOnInit() {
+    this.amountForm = this.formBuilder.group({
+      mode: ['btc']
+    });
+    this.stateService.viewAmountMode$.subscribe((mode) => {
+      this.amountForm.get('mode')?.setValue(mode);
+    });
+  }
+
+  changeMode() {
+    const newMode = this.amountForm.get('mode')?.value;
+    this.storageService.setValue('view-amount-mode', newMode);
+    this.stateService.viewAmountMode$.next(newMode);
+  }
+}
--- a/frontend/src/app/components/block-filters/block-filters.component.html
+++ b/frontend/src/app/components/block-filters/block-filters.component.html
@@ -1,6 +1,5 @@
 <div class="block-filters" [class.filters-active]="activeFilters.length > 0" [class.any-mode]="filterMode === 'or'" [class.menu-open]="menuOpen" [class.small]="cssWidth < 500" [class.vsmall]="cssWidth < 400" [class.tiny]="cssWidth < 200">
-  <a *ngIf="menuOpen" [routerLink]="['/docs/faq' | relativeUrl]" fragment="how-do-mempool-goggles-work" class="info-badges" i18n-ngbTooltip="Mempool Goggles&trade; tooltip" ngbTooltip="select filter categories to highlight matching transactions">
-    <span class="badge badge-pill badge-warning beta" i18n="beta">beta</span>
+  <a *ngIf="menuOpen" [routerLink]="['/docs/faq' | relativeUrl]" fragment="how-do-mempool-goggles-work" class="info-badges float-right" i18n-ngbTooltip="Mempool Goggles&trade; tooltip" ngbTooltip="select filter categories to highlight matching transactions">
    <fa-icon [icon]="['fas', 'info-circle']" [fixedWidth]="true" size="lg"></fa-icon>
  </a>
  <div class="filter-bar">
--- a/frontend/src/app/components/block-filters/block-filters.component.scss
+++ b/frontend/src/app/components/block-filters/block-filters.component.scss
@@ -24,7 +24,6 @@
    display: flex;
    flex-direction: row;
    align-items: center;
-    float: right;

    &:hover, &:active {
      text-decoration: none;
--- a/frontend/src/app/components/block-overview-graph/block-overview-graph.component.html
+++ b/frontend/src/app/components/block-overview-graph/block-overview-graph.component.html
@@ -2,10 +2,12 @@
 <div class="graph-alignment" [class.grid-align]="!autofit" [style.gridTemplateColumns]="'repeat(auto-fit, ' + resolution + 'px)'">
  <div class="block-overview-graph">
    <canvas *browserOnly class="block-overview-canvas" [class.clickable]="!!hoverTx" #blockCanvas></canvas>
-    <div class="loader-wrapper" [class.hidden]="(!isLoading || disableSpinner) && !unavailable">
-      <div *ngIf="!unavailable" class="spinner-border ml-3 loading" role="status"></div>
-      <div *ngIf="!isLoading && unavailable" class="ml-3" i18n="block.not-available">not available</div>
-    </div>
+    @if (!disableSpinner) {
+      <div class="loader-wrapper" [class.hidden]="!isLoading && !unavailable">
+        <div *ngIf="!unavailable" class="spinner-border ml-3 loading" role="status"></div>
+        <div *ngIf="!isLoading && unavailable" class="ml-3" i18n="block.not-available">not available</div>
+      </div>
+    }
    <app-block-overview-tooltip
      [tx]="selectedTx || hoverTx"
      [cursorPosition]="tooltipPosition"
--- a/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts
+++ b/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts
@@ -18,6 +18,7 @@ const unmatchedAuditColors = {
  censored: setOpacity(defaultAuditColors.censored, unmatchedOpacity),
  missing: setOpacity(defaultAuditColors.missing, unmatchedOpacity),
  added: setOpacity(defaultAuditColors.added, unmatchedOpacity),
+  added_prioritized: setOpacity(defaultAuditColors.added_prioritized, unmatchedOpacity),
  prioritized: setOpacity(defaultAuditColors.prioritized, unmatchedOpacity),
  accelerated: setOpacity(defaultAuditColors.accelerated, unmatchedOpacity),
 };
@@ -25,6 +26,7 @@ const unmatchedContrastAuditColors = {
  censored: setOpacity(contrastAuditColors.censored, unmatchedOpacity),
  missing: setOpacity(contrastAuditColors.missing, unmatchedOpacity),
  added: setOpacity(contrastAuditColors.added, unmatchedOpacity),
+  added_prioritized: setOpacity(contrastAuditColors.added_prioritized, unmatchedOpacity),
  prioritized: setOpacity(contrastAuditColors.prioritized, unmatchedOpacity),
  accelerated: setOpacity(contrastAuditColors.accelerated, unmatchedOpacity),
 };
@@ -196,7 +198,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
  }

  // initialize the scene without any entry transition
-  setup(transactions: TransactionStripped[]): void {
+  setup(transactions: TransactionStripped[], sort: boolean = false): void {
    const filtersAvailable = transactions.reduce((flagSet, tx) => flagSet || tx.flags > 0, false);
    if (filtersAvailable !== this.filtersAvailable) {
      this.setFilterFlags();
@@ -204,7 +206,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
    this.filtersAvailable = filtersAvailable;
    if (this.scene) {
      this.clearUpdateQueue();
-      this.scene.setup(transactions);
+      this.scene.setup(transactions, sort);
      this.readyNextFrame = true;
      this.start();
      this.updateSearchHighlight();
--- a/frontend/src/app/components/block-overview-graph/block-scene.ts
+++ b/frontend/src/app/components/block-overview-graph/block-scene.ts
@@ -88,16 +88,19 @@ export default class BlockScene {
  }

  // set up the scene with an initial set of transactions, without any transition animation
-  setup(txs: TransactionStripped[]) {
+  setup(txs: TransactionStripped[], sort: boolean = false) {
    // clean up any old transactions
    Object.values(this.txs).forEach(tx => {
      tx.destroy();
      delete this.txs[tx.txid];
    });
    this.layout = new BlockLayout({ width: this.gridWidth, height: this.gridHeight });
-    txs.forEach(tx => {
-      const txView = new TxView(tx, this);
-      this.txs[tx.txid] = txView;
+    let txViews = txs.map(tx => new TxView(tx, this));
+    if (sort) {
+      txViews = txViews.sort(feeRateDescending);
+    }
+    txViews.forEach(txView => {
+      this.txs[txView.txid] = txView;
      this.place(txView);
      this.saveGridToScreenPosition(txView);
      this.applyTxUpdate(txView, {
--- a/frontend/src/app/components/block-overview-graph/tx-view.ts
+++ b/frontend/src/app/components/block-overview-graph/tx-view.ts
@@ -33,7 +33,7 @@ export default class TxView implements TransactionStripped {
  flags: number;
  bigintFlags?: bigint | null = 0b00000100_00000000_00000000_00000000n;
  time?: number;
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'prioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'added_prioritized' | 'prioritized' | 'added_deprioritized' | 'deprioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
  context?: 'projected' | 'actual';
  scene?: BlockScene;

--- a/frontend/src/app/components/block-overview-graph/utils.ts
+++ b/frontend/src/app/components/block-overview-graph/utils.ts
@@ -71,6 +71,7 @@ export const defaultAuditColors = {
  censored: hexToColor('f344df'),
  missing: darken(desaturate(hexToColor('f344df'), 0.3), 0.7),
  added: hexToColor('0099ff'),
+  added_prioritized: darken(desaturate(hexToColor('0099ff'), 0.15), 0.85),
  prioritized: darken(desaturate(hexToColor('0099ff'), 0.3), 0.7),
  accelerated: hexToColor('8f5ff6'),
 };
@@ -101,6 +102,7 @@ export const contrastAuditColors = {
  censored: hexToColor('ffa8ff'),
  missing: darken(desaturate(hexToColor('ffa8ff'), 0.3), 0.7),
  added: hexToColor('00bb98'),
+  added_prioritized: darken(desaturate(hexToColor('00bb98'), 0.15), 0.85),
  prioritized: darken(desaturate(hexToColor('00bb98'), 0.3), 0.7),
  accelerated: hexToColor('8f5ff6'),
 };
@@ -136,8 +138,14 @@ export function defaultColorFunction(
      return auditColors.missing;
    case 'added':
      return auditColors.added;
+    case 'added_prioritized':
+      return auditColors.added_prioritized;
    case 'prioritized':
      return auditColors.prioritized;
+    case 'added_deprioritized':
+      return auditColors.added_prioritized;
+    case 'deprioritized':
+      return auditColors.prioritized;
    case 'selected':
      return colors.marginal[levelIndex] || colors.marginal[defaultMempoolFeeColors.length - 1];
    case 'accelerated':
--- a/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html
+++ b/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html
@@ -40,7 +40,7 @@
      </tr>
      <tr>
        <td class="label" i18n="transaction.fee|Transaction fee">Fee</td>
-        <td class="value">{{ fee | number }} <span class="symbol" i18n="shared.sat|sat">sat</span> &nbsp; <span class="fiat"><app-fiat [blockConversion]="blockConversion" [value]="fee"></app-fiat></span>
+        <td class="value">{{ fee | number }} <span class="symbol" i18n="shared.sats">sats</span> &nbsp; <span class="fiat"><app-fiat [blockConversion]="blockConversion" [value]="fee"></app-fiat></span>
      </tr>
      <tr>
        <td class="label" i18n="transaction.fee-rate|Transaction fee rate">Fee rate</td>
@@ -51,7 +51,7 @@
      <tr *ngIf="hasEffectiveRate && effectiveRate != null">
        <td *ngIf="!this.acceleration" class="label" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</td>
        <td *ngIf="this.acceleration" class="label" i18n="transaction.accelerated-fee-rate|Accelerated transaction fee rate">Accelerated fee rate</td>
-        <td class="value">
+        <td class="value" [class.oobFees]="this.acceleration">
          <app-fee-rate [fee]="effectiveRate"></app-fee-rate>
        </td>
      </tr>
@@ -75,6 +75,15 @@
            <span *ngSwitchCase="'freshcpfp'" class="badge badge-warning" i18n="transaction.audit.recently-cpfped">Recently CPFP'd</span>
            <span *ngSwitchCase="'added'" class="badge badge-warning" i18n="tx-features.tag.added|Added">Added</span>
            <span *ngSwitchCase="'prioritized'" class="badge badge-warning" i18n="tx-features.tag.prioritized|Prioritized">Prioritized</span>
+            <ng-container *ngSwitchCase="'added_prioritized'">
+              <span class="badge badge-warning" i18n="tx-features.tag.added|Added">Added</span>
+              <span class="badge badge-warning ml-1" i18n="tx-features.tag.prioritized|Prioritized">Prioritized</span>
+            </ng-container>
+            <span *ngSwitchCase="'deprioritized'" class="badge badge-warning" i18n="tx-features.tag.prioritized|Deprioritized">Deprioritized</span>
+            <ng-container *ngSwitchCase="'added_deprioritized'">
+              <span class="badge badge-warning" i18n="tx-features.tag.added|Added">Added</span>
+              <span class="badge badge-warning ml-1" i18n="tx-features.tag.prioritized|Deprioritized">Deprioritized</span>
+            </ng-container>
            <span *ngSwitchCase="'selected'" class="badge badge-warning" i18n="transaction.audit.marginal">Marginal fee rate</span>
            <span *ngSwitchCase="'rbf'" class="badge badge-warning" i18n="tx-features.tag.conflict|Conflict">Conflict</span>
            <span *ngSwitchCase="'accelerated'" class="badge badge-accelerated" i18n="transaction.audit.accelerated">Accelerated</span>
--- a/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.scss
+++ b/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.scss
@@ -27,6 +27,9 @@ th, td {
    width: 70%;
    text-align: end;
  }
+  &.oobFees {
+    color: #905cf4;
+  }
 }

 .badge.badge-accelerated {
--- a/frontend/src/app/components/block/block-preview.component.ts
+++ b/frontend/src/app/components/block/block-preview.component.ts
@@ -137,7 +137,7 @@ export class BlockPreviewComponent implements OnInit, OnDestroy {
                })
              ),
            this.stateService.env.ACCELERATOR === true && block.height > 819500
-              ? this.servicesApiService.getAccelerationHistory$({ blockHeight: block.height })
+              ? this.servicesApiService.getAllAccelerationHistory$({ blockHeight: block.height })
                .pipe(catchError(() => {
                  return of([]);
                }))
--- a/frontend/src/app/components/block/block.component.ts
+++ b/frontend/src/app/components/block/block.component.ts
@@ -17,6 +17,7 @@ import { PriceService, Price } from '../../services/price.service';
 import { CacheService } from '../../services/cache.service';
 import { ServicesApiServices } from '../../services/services-api.service';
 import { PreloadService } from '../../services/preload.service';
+import { identifyPrioritizedTransactions } from '../../shared/transaction.utils';

@Component({
  selector: 'app-block',
@@ -318,7 +319,7 @@ export class BlockComponent implements OnInit, OnDestroy {
    this.accelerationsSubscription = this.block$.pipe(
      switchMap((block) => {
        return this.stateService.env.ACCELERATOR === true && block.height > 819500
-          ? this.servicesApiService.getAccelerationHistory$({ blockHeight: block.height })
+          ? this.servicesApiService.getAllAccelerationHistory$({ blockHeight: block.height })
            .pipe(catchError(() => {
              return of([]);
            }))
@@ -326,7 +327,7 @@ export class BlockComponent implements OnInit, OnDestroy {
      })
    ).subscribe((accelerations) => {
      this.accelerations = accelerations;
-      if (accelerations.length) {
+      if (accelerations.length && this.strippedTransactions) { // Don't call setupBlockAudit if we don't have transactions yet; it will be called later in overviewSubscription
        this.setupBlockAudit();
      }
    });
@@ -521,8 +522,10 @@ export class BlockComponent implements OnInit, OnDestroy {
    if (transactions && blockAudit) {
      const inTemplate = {};
      const inBlock = {};
+      const isUnseen = {};
      const isAdded = {};
      const isPrioritized = {};
+      const isDeprioritized = {};
      const isCensored = {};
      const isMissing = {};
      const isSelected = {};
@@ -534,6 +537,17 @@ export class BlockComponent implements OnInit, OnDestroy {
      this.numUnexpected = 0;

      if (blockAudit?.template) {
+        // augment with locally calculated *de*prioritized transactions if possible
+        const { prioritized, deprioritized } = identifyPrioritizedTransactions(transactions);
+        // but if the local calculation produces returns unexpected results, don't use it
+        let useLocalDeprioritized = deprioritized.length < (transactions.length * 0.1);
+        for (const tx of prioritized) {
+          if (!isPrioritized[tx] && !isAccelerated[tx]) {
+            useLocalDeprioritized = false;
+            break;
+          }
+        }
+
        for (const tx of blockAudit.template) {
          inTemplate[tx.txid] = true;
          if (tx.acc) {
@@ -543,12 +557,20 @@ export class BlockComponent implements OnInit, OnDestroy {
        for (const tx of transactions) {
          inBlock[tx.txid] = true;
        }
+        for (const txid of blockAudit.unseenTxs || []) {
+          isUnseen[txid] = true;
+        }
        for (const txid of blockAudit.addedTxs) {
          isAdded[txid] = true;
        }
-        for (const txid of blockAudit.prioritizedTxs || []) {
+        for (const txid of blockAudit.prioritizedTxs) {
          isPrioritized[txid] = true;
        }
+        if (useLocalDeprioritized) {
+          for (const txid of deprioritized || []) {
+            isDeprioritized[txid] = true;
+          }
+        }
        for (const txid of blockAudit.missingTxs) {
          isCensored[txid] = true;
        }
@@ -592,18 +614,33 @@ export class BlockComponent implements OnInit, OnDestroy {
            tx.status = 'accelerated';
          }
        }
-        for (const [index, tx] of transactions.entries()) {
+        let anySeen = false;
+        for (let index = transactions.length - 1; index >= 0; index--) {
+          const tx = transactions[index];
          tx.context = 'actual';
          if (index === 0) {
            tx.status = null;
-          } else if (isAdded[tx.txid]) {
-            tx.status = 'added';
          } else if (isPrioritized[tx.txid]) {
-            tx.status = 'prioritized';
+            if (isAdded[tx.txid] || (blockAudit.version > 0 && isUnseen[tx.txid])) {
+              tx.status = 'added_prioritized';
+            } else {
+              tx.status = 'prioritized';
+            }
+          } else if (isDeprioritized[tx.txid]) {
+            if (isAdded[tx.txid] || (blockAudit.version > 0 && isUnseen[tx.txid])) {
+              tx.status = 'added_deprioritized';
+            } else {
+              tx.status = 'deprioritized';
+            }
+          } else if (isAdded[tx.txid] && (blockAudit.version === 0 || isUnseen[tx.txid])) {
+            tx.status = 'added';
          } else if (inTemplate[tx.txid]) {
+            anySeen = true;
            tx.status = 'found';
          } else if (isRbf[tx.txid]) {
            tx.status = 'rbf';
+          } else if (isUnseen[tx.txid] && anySeen) {
+            tx.status = 'added';
          } else {
            tx.status = 'selected';
            isSelected[tx.txid] = true;
--- a/frontend/src/app/components/blocks-list/blocks-list.component.html
+++ b/frontend/src/app/components/blocks-list/blocks-list.component.html
@@ -1,7 +1,10 @@
 <app-indexing-progress *ngIf="!widget"></app-indexing-progress>

 <div class="container-xl" style="min-height: 335px" [ngClass]="{'widget': widget, 'full-height': !widget, 'legacy': !isMempoolModule}">
-  <h1 *ngIf="!widget" class="float-left" i18n="master-page.blocks">Blocks</h1>
+  <div *ngIf="!widget" class="float-left" style="display: flex; width: 100%; align-items: center;">
+    <h1 i18n="master-page.blocks">Blocks</h1>
+    <app-svg-images name="blocks-2-3" style="width: 275px; max-width: 90%; margin-top: -10px"></app-svg-images>
+  </div>
  <div *ngIf="!widget && isLoading" class="spinner-border ml-3" role="status"></div>

  <div class="clearfix"></div>
--- a/frontend/src/app/components/calculator/calculator.component.html
+++ b/frontend/src/app/components/calculator/calculator.component.html
@@ -12,7 +12,7 @@
          <div class="input-group-prepend">
            <span class="input-group-text">{{ currency$ | async }}</span>
          </div>
-          <input type="text" class="form-control" formControlName="fiat" (input)="transformInput('fiat')" (click)="selectAll($event)">
+          <input type="text" inputmode="numeric" class="form-control" formControlName="fiat" (input)="transformInput('fiat')" (click)="selectAll($event)">
          <app-clipboard [button]="true" [text]="form.get('fiat').value" [class]="'btn btn-lg btn-secondary ml-1'"></app-clipboard>
        </div>

@@ -20,7 +20,7 @@
          <div class="input-group-prepend">
            <span class="input-group-text">BTC</span>
          </div>
-          <input type="text" class="form-control" formControlName="bitcoin" (input)="transformInput('bitcoin')" (click)="selectAll($event)">
+          <input type="text" inputmode="numeric" class="form-control" formControlName="bitcoin" (input)="transformInput('bitcoin')" (click)="selectAll($event)">
          <app-clipboard [button]="true" [text]="form.get('bitcoin').value" [class]="'btn btn-lg btn-secondary ml-1'"></app-clipboard>
        </div>

@@ -28,7 +28,7 @@
          <div class="input-group-prepend">
            <span class="input-group-text" i18n="shared.sats">sats</span>
          </div>
-          <input type="text" class="form-control" formControlName="satoshis" (input)="transformInput('satoshis')" (click)="selectAll($event)">
+          <input type="text" inputmode="numeric" class="form-control" formControlName="satoshis" (input)="transformInput('satoshis')" (click)="selectAll($event)">
          <app-clipboard [button]="true" [text]="form.get('satoshis').value" [class]="'btn btn-lg btn-secondary ml-1'"></app-clipboard>
        </div>
      </form>
--- a/frontend/src/app/components/difficulty-mining/difficulty-mining.component.ts
+++ b/frontend/src/app/components/difficulty-mining/difficulty-mining.component.ts
@@ -77,7 +77,7 @@ export class DifficultyMiningComponent implements OnInit {
          base: `${da.progressPercent.toFixed(2)}%`,
          change: da.difficultyChange,
          progress: da.progressPercent,
-          remainingBlocks: da.remainingBlocks - 1,
+          remainingBlocks: da.remainingBlocks,
          colorAdjustments,
          colorPreviousAdjustments,
          newDifficultyHeight: da.nextRetargetHeight,
--- a/frontend/src/app/components/difficulty/difficulty.component.ts
+++ b/frontend/src/app/components/difficulty/difficulty.component.ts
@@ -153,8 +153,8 @@ export class DifficultyComponent implements OnInit {
          base: `${da.progressPercent.toFixed(2)}%`,
          change: da.difficultyChange,
          progress: da.progressPercent,
-          minedBlocks: this.currentIndex + 1,
-          remainingBlocks: da.remainingBlocks - 1,
+          minedBlocks: this.currentIndex,
+          remainingBlocks: da.remainingBlocks,
          expectedBlocks: Math.floor(da.expectedBlocks),
          colorAdjustments,
          colorPreviousAdjustments,
--- a/frontend/src/app/components/faucet/faucet.component.html
+++ b/frontend/src/app/components/faucet/faucet.component.html
@@ -5,7 +5,7 @@
  </div>

  <div class="faucet-container text-center">
-  
+
    @if (txid) {
      <div class="alert alert-success w-100 text-truncate">
        <fa-icon [icon]="['fas', 'circle-check']"></fa-icon>
@@ -36,6 +36,13 @@
        <app-twitter-login customClass="btn btn-sm" width="180px" redirectTo="/testnet4/faucet" buttonString="Link your Twitter"></app-twitter-login>
      </div>
    }
+    @else if (error === 'account_limited') {
+      <div class="alert alert-mempool d-block text-center w-100">
+        <div class="d-inline align-middle">
+          <span class="mb-2 mr-2">Your Twitter account does not allow you to access the faucet</span>
+        </div>
+      </div>
+    }
    @else if (error) {
      <!-- User can request -->
      <app-mempool-error class="w-100" [error]="error"></app-mempool-error>
@@ -81,7 +88,7 @@
    }

    <!-- Send back coins -->
-    @if (status?.address) {  
+    @if (status?.address) {
      <div class="mt-4 alert alert-info w-100">If you no longer need your testnet4 coins, please consider <a class="text-primary" [routerLink]="['/address/' | relativeUrl, status.address]"><u>sending them back</u></a> to replenish the faucet.</div>
    }

--- a/frontend/src/app/components/faucet/faucet.component.ts
+++ b/frontend/src/app/components/faucet/faucet.component.ts
@@ -19,7 +19,7 @@ export class FaucetComponent implements OnInit, OnDestroy {
  error: string = '';
  user: any = undefined;
  txid: string = '';
- 
+
  faucetStatusSubscription: Subscription;
  status: {
    min: number; // minimum amount to request at once (in sats)
--- a/frontend/src/app/components/liquid-master-page/liquid-master-page.component.html
+++ b/frontend/src/app/components/liquid-master-page/liquid-master-page.component.html
@@ -52,7 +52,7 @@
      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['mainnet'] || '')" ngbDropdownItem class="mainnet"><app-svg-images name="bitcoin" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Mainnet</a>
      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['signet'] || '/signet')" ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet"><app-svg-images name="signet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Signet</a>
      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['testnet'] || '/testnet')" ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet"><app-svg-images name="testnet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet3</a>
-      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['testnet4'] || '/testnet4')" ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4 <span class="badge badge-pill badge-warning beta-network" i18n="beta">beta</span></a>
+      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['testnet4'] || '/testnet4')" ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4</a>
      <h6 class="dropdown-header" i18n="master-page.layer2-networks-header">Layer 2 Networks</h6>
      <a ngbDropdownItem class="liquid mr-1" [class.active]="network.val === 'liquid'" [routerLink]="networkPaths['liquid'] || '/'"><app-svg-images name="liquid" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid</a>
      <a ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquidtestnet'" [routerLink]="networkPaths['liquidtestnet'] || '/testnet'"><app-svg-images name="liquidtestnet" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid Testnet</a>
--- a/frontend/src/app/components/master-page/master-page.component.html
+++ b/frontend/src/app/components/master-page/master-page.component.html
@@ -70,7 +70,7 @@
      <a ngbDropdownItem *ngIf="env.MAINNET_ENABLED" class="mainnet" [routerLink]="networkPaths['mainnet'] || '/'"><app-svg-images name="bitcoin" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Mainnet</a>
      <a ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet" [class.active]="network.val === 'signet'" [routerLink]="networkPaths['signet'] || '/signet'"><app-svg-images name="signet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Signet</a>
      <a ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet" [class.active]="network.val === 'testnet'" [routerLink]="networkPaths['testnet'] || '/testnet'"><app-svg-images name="testnet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet3</a>
-      <a ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet4" [class.active]="network.val === 'testnet4'" [routerLink]="networkPaths['testnet4'] || '/testnet4'"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4 <span class="badge badge-pill badge-warning beta-network" i18n="beta">beta</span></a>
+      <a ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet4" [class.active]="network.val === 'testnet4'" [routerLink]="networkPaths['testnet4'] || '/testnet4'"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4</a>
      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage + (networkPaths['liquid'] || '')" ngbDropdownItem *ngIf="env.LIQUID_ENABLED" class="liquid" [class.active]="network.val === 'liquid'"><app-svg-images name="liquid" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid</a>
      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage  + (networkPaths['liquidtestnet'] || '/testnet')" ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquid'"><app-svg-images name="liquidtestnet" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid Testnet</a>
    </div>
--- a/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts
+++ b/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts
@@ -31,7 +31,7 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang

  lastBlockHeight: number;
  blockIndex: number;
-  isLoading$ = new BehaviorSubject<boolean>(true);
+  isLoading$ = new BehaviorSubject<boolean>(false);
  timeLtrSubscription: Subscription;
  timeLtr: boolean;
  chainDirection: string = 'right';
@@ -95,6 +95,7 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
            }
          }
          this.updateBlock({
+            block: this.blockIndex,
            removed,
            changed,
            added
@@ -110,8 +111,11 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
      if (this.blockGraph) {
        this.blockGraph.clear(changes.index.currentValue > changes.index.previousValue ? this.chainDirection : this.poolDirection);
      }
-      this.isLoading$.next(true);
-      this.websocketService.startTrackMempoolBlock(changes.index.currentValue);
+      if (!this.websocketService.startTrackMempoolBlock(changes.index.currentValue) && this.stateService.mempoolBlockState && this.stateService.mempoolBlockState.block === changes.index.currentValue) {
+        this.resumeBlock(Object.values(this.stateService.mempoolBlockState.transactions));
+      } else {
+        this.isLoading$.next(true);
+      }
    }
  }

@@ -153,6 +157,19 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
    this.isLoading$.next(false);
  }

+  resumeBlock(transactionsStripped: TransactionStripped[]): void {
+    if (this.blockGraph) {
+      this.firstLoad = false;
+      this.blockGraph.setup(transactionsStripped, true);
+      this.blockIndex = this.index;
+      this.isLoading$.next(false);
+    } else {
+      requestAnimationFrame(() => {
+        this.resumeBlock(transactionsStripped);
+      });
+    }
+  }
+
  onTxClick(event: { tx: TransactionStripped, keyModifier: boolean }): void {
    const url = new RelativeUrlPipe(this.stateService).transform(`/tx/${event.tx.txid}`);
    if (!event.keyModifier) {
--- a/frontend/src/app/components/mempool-block/mempool-block.component.ts
+++ b/frontend/src/app/components/mempool-block/mempool-block.component.ts
@@ -71,7 +71,7 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
        })
      );

-    this.mempoolBlockTransactions$ = this.stateService.liveMempoolBlockTransactions$.pipe(map(txMap => Object.values(txMap)));
+    this.mempoolBlockTransactions$ = this.stateService.liveMempoolBlockTransactions$.pipe(map(({transactions}) => Object.values(transactions)));

    this.network$ = this.stateService.networkChanged$;
  }
--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
@@ -51,7 +51,8 @@
        </div>
      </ng-template>
    </div>
-    <div *ngIf="arrowVisible" id="arrow-up" [ngStyle]="{'right': rightPosition + (blockWidth * 0.3) + containerOffset + 'px', transition: transition }" [class.blink]="txPosition?.accelerated"></div>
+    <app-acceleration-sparkles [style]="{ position: 'absolute', right: 0}" [arrow]="arrowElement" [run]="acceleratingArrow"></app-acceleration-sparkles>
+    <div *ngIf="arrowVisible" #arrowUp id="arrow-up" [ngStyle]="{'right': rightPosition + (blockWidth * 0.3) + containerOffset + 'px', transition: transition }" [class.blink]="txPosition?.accelerated"></div>
  </div>
 </ng-container>

--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
@@ -1,4 +1,4 @@
-import { Component, OnInit, OnDestroy, ChangeDetectionStrategy, ChangeDetectorRef, HostListener, Input, OnChanges, SimpleChanges, Output, EventEmitter } from '@angular/core';
+import { Component, OnInit, OnDestroy, ChangeDetectionStrategy, ChangeDetectorRef, HostListener, Input, OnChanges, SimpleChanges, Output, EventEmitter, ViewChild, ElementRef } from '@angular/core';
 import { Subscription, Observable, of, combineLatest } from 'rxjs';
 import { MempoolBlock } from '../../interfaces/websocket.interface';
 import { StateService } from '../../services/state.service';
@@ -77,6 +77,9 @@ export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {
  maxArrowPosition = 0;
  rightPosition = 0;
  transition = 'background 2s, right 2s, transform 1s';
+  @ViewChild('arrowUp')
+  arrowElement: ElementRef<HTMLDivElement>;
+  acceleratingArrow: boolean = false;

  markIndex: number;
  txPosition: MempoolPosition;
@@ -201,6 +204,7 @@ export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {

    this.markBlocksSubscription = this.stateService.markBlock$
      .subscribe((state) => {
+        const oldTxPosition = this.txPosition;
        this.markIndex = undefined;
        this.txPosition = undefined;
        this.txFeePerVSize = undefined;
@@ -209,6 +213,12 @@ export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {
        }
        if (state.mempoolPosition) {
          this.txPosition = state.mempoolPosition;
+          if (this.txPosition.accelerated && !oldTxPosition?.accelerated) {
+            this.acceleratingArrow = true;
+            setTimeout(() => {
+              this.acceleratingArrow = false;
+            }, 2000);
+          }
        }
        if (state.txFeePerVSize) {
          this.txFeePerVSize = state.txFeePerVSize;
--- a/frontend/src/app/components/privacy-policy/privacy-policy.component.html
+++ b/frontend/src/app/components/privacy-policy/privacy-policy.component.html
@@ -5,7 +5,7 @@
    <br><br>

    <h2>Privacy Policy</h2>
-    <h6>Updated: August 02, 2024</h6>
+    <h6>Updated: July 31, 2024</h6>

    <br><br>

@@ -13,7 +13,7 @@

      <h4>USE YOUR OWN SELF-HOSTED MEMPOOL EXPLORER</h4>

-      <p>For maximum privacy, We recommend that you use your own self-hosted instance of The Mempool Open Source Project&reg;; on your own hardware. You can easily install your own self-hosted instance of this website on a Raspberry Pi using a one-click installation method maintained by various Bitcoin fullnode distributions such as Umbrel, RaspiBlitz, MyNode, and RoninDojo. See Our project's GitHub page for more details about self-hosting this website. By using your own self-hosted instance you will have maximum security, privacy and freedom.</p>
+      <p>For maximum privacy, we recommend that you use your own self-hosted instance of The Mempool Open Source Project&reg;; on your own hardware. You can easily install your own self-hosted instance of this website on a Raspberry Pi using a one-click installation method maintained by various Bitcoin fullnode distributions such as Umbrel, RaspiBlitz, MyNode, and RoninDojo. See our project's GitHub page for more details about self-hosting this website. By using your own self-hosted instance you will have maximum security, privacy and freedom.</p>

      <br>

@@ -29,17 +29,17 @@

      <h4>USING THIS WEBSITE</h4>

-      <p *ngIf="officialMempoolSpace">Out of respect for the Bitcoin community, this Website does not use any third-party analytics, third-party trackers, or third-party cookies, and We do not share any private user data with third-parties. Additionally, to mitigate the risk of surveillance by malicious third-parties, We self-host this Website on Our own hardware and network infrastructure, so there are no "hosting companies" or "cloud providers" involved with the operation of this Website.</p>
+      <p *ngIf="officialMempoolSpace">Out of respect for the Bitcoin community, this Website does not use any third-party analytics, third-party trackers, or third-party cookies, and we do not share any private user data with third-parties. Additionally, to mitigate the risk of surveillance by malicious third-parties, we self-host this Website on our own hardware and network infrastructure, so there are no "hosting companies" or "cloud providers" involved with the operation of this Website.</p>

-      <p>Out of respect for the Bitcoin community, this Website does not use any first-party cookies, except to store your preferred language setting (if any). However, We do use minimal first-party analytics and logging as needed for the operation of this Website, as follows:</p>
+      <p>Out of respect for the Bitcoin community, this Website does not use any first-party cookies, except to store your preferred language setting (if any). However, we do use minimal first-party analytics and logging as needed for the operation of this Website, as follows:</p>

      <ul>

-        <li>We use basic webserver logging (nginx) for sysadmin purposes, which collects your IP address along with the requests you make. These logs are deleted after 10 days, and We do not share this data with any third-party.</li>
+        <li>We use basic webserver logging (nginx) for sysadmin purposes, which collects your IP address along with the requests you make. These logs are deleted after 10 days, and we do not share this data with any third-party.</li>

        <br>

-        <li>We use a self-hosted statistics application (matomo) for analytics purposes, which collects your IP address along with the requests you make. Our matomo instance is configured to respect your privacy by redacting your IP address and other methods, and We do not share this data with any third-party. To conceal your activity from Our analytics, We recommend that you use a privacy protecting browser extension that blocks matomo from being loaded.</li>
+        <li>We use a self-hosted statistics application (matomo) for analytics purposes, which collects your IP address along with the requests you make. Our matomo instance is configured to respect your privacy by redacting your IP address and other methods, and we do not share this data with any third-party. To conceal your activity from our analytics, we recommend that you use a privacy protecting browser extension that blocks matomo from being loaded.</li>

      </ul>

@@ -47,7 +47,7 @@

      <h4>USING MEMPOOL ACCELERATOR&trade;</h4>

-      <p *ngIf="officialMempoolSpace">If you use Mempool Accelerator&trade; your acceleration request will be sent to Mempool and relayed to Mempool mining pool partners. We will store the TXID of the transactions you accelerate with Us. We share this information with Mempool mining pool partners, and publicly display accelerated transaction details on Our website and via Our APIs. No personal information or account identifiers will be shared with any third party including Our mining pool partners.</p>
+      <p *ngIf="officialMempoolSpace">If you use Mempool Accelerator&trade; your acceleration request will be sent to us and relayed to Mempool's mining pool partners. We will store the TXID of the transactions you accelerate with us. We share this information with our mining pool partners, and publicly display accelerated transaction details on our website and APIs. No personal information or account identifiers will be shared with any third party including mining pool partners.</p>

      <p *ngIf="!officialMempoolSpace">When using Mempool Accelerator&trade; the mempool.space privacy policy will apply: <a href="https://mempool.space/privacy-policy">https://mempool.space/privacy-policy</a>.</p>

@@ -57,15 +57,15 @@

        <h4>SIGNING UP FOR AN ACCOUNT ON MEMPOOL.SPACE</h4>

-        <p>If you sign up for an account on mempool.space, We may collect the following:</p>
+        <p>If you sign up for an account on mempool.space, we may collect the following:</p>

        <ul>

-          <li>Your e-mail address and/or country; We may use this information to manage your user account, for billing purposes, or to update you about Our services. We will not share this with any third-party, except as necessary for Our fiat payment processor (see "Payments" below).</li>
+          <li>Your e-mail address and/or country; we may use this information to manage your user account, for billing purposes, or to update you about our services. We will not share this with any third-party, except as necessary for our fiat payment processor (see "Payments" below).</li>

-          <li>If you connect your X (fka Twitter) account, We may store your X identity, e-mail address, and profile photo. We may publicly display your profile photo or link to your profile on Our website, if you sponsor The Mempool Open Source Project&reg;, claim your Lightning node, or other such use cases.</li>
+          <li>If you connect your X (fka Twitter) account, we may store your X identity, e-mail address, and profile photo. We may publicly display your profile photo or link to your profile on our website, if you sponsor The Mempool Open Source Project&reg;, claim your Lightning node, or other such use cases.</li>

-          <li>If you sign up for a subscription to Mempool Enterprise&trade; We also collect your company name which is not shared with any third-party.</li>
+          <li>If you sign up for a subscription to Mempool Enterprise&trade; we also collect your company name which is not shared with any third-party.</li>

          <li>If you sign up for an account on mempool.space and use Mempool Accelerator&trade; Pro your accelerated transactions will be associated with your account for the purposes of accounting.</li>

@@ -79,15 +79,15 @@
        
      <h4>PAYMENTS AND DONATIONS</h4>

-        <p>If you make any payment to Mempool or donation to The Mempool Open Source Project&reg;, We may collect the following:</p>
+        <p>If you make any payment to Mempool or donation to The Mempool Open Source Project&reg;, we may collect the following:</p>

        <ul>

-          <li>Your e-mail address and/or country; We may use this information to manage your user account, for billing purposes, or to update you about Our services. We will not share this with any third-party, except as necessary for Our fiat payment processor.</li>
+          <li>Your e-mail address and/or country; we may use this information to manage your user account, for billing purposes, or to update you about our services. We will not share this with any third-party, except as necessary for our fiat payment processor.</li>

-          <li>If you make a payment using Bitcoin, We will process your payment using Our self-hosted BTCPay Server instance. We will not share your payment details with any third-party. For payments made over the Lightning network, We may utilize third party LSPs / lightning liquidity providers.</li>
+          <li>If you make a payment using Bitcoin, we will process your payment using our self-hosted BTCPay Server instance. We will not share your payment details with any third-party. For payments made over the Lightning network, we may utilize third party LSPs / lightning liquidity providers.</li>

-          <li>If you make a payment using Fiat We will collect your payment details. We will share your payment details with Our fiat payment processor Square (Block, Inc.) - Please see "Information We collect about customers" on Square's website at https://squareup.com/us/en/legal/general/privacy.</li>
+          <li>If you make a payment using Fiat we will collect your payment details. We will share your payment details with our fiat payment processor Square (Block, Inc.) - Please see "Information we collect about customers" on Square's website at https://squareup.com/us/en/legal/general/privacy.</li>

        </ul>

@@ -102,7 +102,7 @@
        <p>We aim to retain your data only as long as necessary:</p>
        <ul>
          <li>An account is considered inactive if all of the following conditions are met: a) No login activity within the past 6 months, b) No active subscriptions associated with the account, c) No Mempool Accelerator™ Pro account credit</li>
-          <li>If an account meets the criteria for inactivity as defined above, We will automatically delete the associated account data after a period of 6 months of continuous inactivity, except in the case of payment disputes or account irregularities.</li>
+          <li>If an account meets the criteria for inactivity as defined above, we will automatically delete the associated account data after a period of 6 months of continuous inactivity, except in the case of payment disputes or account irregularities.</li>
        </ul>

      </ng-container>
--- a/frontend/src/app/components/rbf-timeline/rbf-timeline-tooltip.component.html
+++ b/frontend/src/app/components/rbf-timeline/rbf-timeline-tooltip.component.html
@@ -19,7 +19,7 @@
      </tr>
      <tr>
        <td class="td-width" i18n="transaction.fee|Transaction fee">Fee</td>
-        <td>{{ rbfInfo.tx.fee | number }} <span class="symbol" i18n="shared.sat|sat">sat</span></td>
+        <td>{{ rbfInfo.tx.fee | number }} <span class="symbol" i18n="shared.sats">sats</span></td>
      </tr>
      <tr *only-vsize>
        <td class="td-width" i18n="transaction.vsize|Transaction Virtual Size">Virtual size</td>
--- a/frontend/src/app/components/svg-images/svg-images.component.html
+++ b/frontend/src/app/components/svg-images/svg-images.component.html
--- a/frontend/src/app/components/test-transactions/test-transactions.component.html
+++ b/frontend/src/app/components/test-transactions/test-transactions.component.html
@@ -1,5 +1,8 @@
 <div class="container-xl">
-  <h1 class="text-left" i18n="shared.test-transactions|Test Transactions">Test Transactions</h1>
+  <div style="display: flex; width: 100%; align-items: center; flex-wrap: wrap;">
+    <h1 class="text-left" i18n="shared.test-transactions|Test Transactions">Test Transactions</h1>
+    <app-svg-images name="blocks-3-2" style="width: 275px; max-width: 90%; margin-top: -9px"></app-svg-images>
+  </div>

  <form [formGroup]="testTxsForm" (submit)="testTxsForm.valid && testTxs()" novalidate>
    <label for="maxfeerate" i18n="test.tx.raw-hex">Raw hex</label>
--- a/frontend/src/app/components/tracker/tracker.component.html
+++ b/frontend/src/app/components/tracker/tracker.component.html
@@ -42,11 +42,11 @@
      <div class="blockchain-wrapper" [style]="{ height: blockchainHeight * 1.16 + 'px' }">
        <app-clockchain [height]="blockchainHeight" [width]="blockchainWidth" mode="none"></app-clockchain>
      </div>
-    <div class="panel">
+    <div class="panel" *ngIf="!error || waitingForTransaction">
      @if (replaced) {
        <div class="alert-replaced" role="alert">
          <span i18n="transaction.rbf.replacement|RBF replacement">This transaction has been replaced by:</span>
-          <app-truncate [text]="latestReplacement" [lastChars]="12" [link]="['/tracker/' | relativeUrl, latestReplacement]"></app-truncate>
+          <app-truncate [text]="latestReplacement" [lastChars]="12" [link]="['/tx/' | relativeUrl, latestReplacement]" [queryParams]="{mode: 'status'}"></app-truncate>
        </div>
      } @else {
        <div class="tracker-bar">
@@ -61,27 +61,29 @@
              @if (transactionTime > 0) {
                <i><app-time kind="since" [time]="transactionTime" [fastRender]="true" [showTooltip]="true"></app-time></i>
              } @else {
-                <span class="skeleton-loader" style="max-width: 50%;"></span>
+                <span class="skeleton-loader" style="max-width: 200px;"></span>
              }
            </div>
          </div>
-          <div class="field narrower">
-            <div class="label" i18n="transaction.eta|Transaction ETA">ETA</div>
-            <div class="value">
-              <ng-container *ngIf="(ETA$ | async) as eta; else etaSkeleton">
-                <span class="justify-content-end d-flex align-items-center">
-                  @if (eta.blocks >= 7) {
-                    <span i18n="transaction.eta.not-any-time-soon|Transaction ETA mot any time soon">Not any time soon</span>
-                  } @else {
-                    <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
-                  }
-                </span>
-              </ng-container>
-              <ng-template #etaSkeleton>
-                <span class="skeleton-loader"></span>
-              </ng-template>
-            </div>
-          </div>
+          @if (!replaced) {
+            <div class="field narrower">
+              <div class="label" i18n="transaction.eta|Transaction ETA">ETA</div>
+              <div class="value">
+                <ng-container *ngIf="(ETA$ | async) as eta; else etaSkeleton">
+                  <span class="justify-content-end d-flex align-items-center">
+                    @if (eta.blocks >= 7) {
+                      <span i18n="transaction.eta.not-any-time-soon|Transaction ETA mot any time soon">Not any time soon</span>
+                    } @else {
+                      <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
+                    }
+                  </span>
+                </ng-container>
+                <ng-template #etaSkeleton>
+                  <span class="skeleton-loader" style="max-width: 200px;"></span>
+                </ng-template>
+              </div>
+            </div>  
+          }
        } @else if (tx && tx.status?.confirmed) {
          <div class="field narrower mt-2">
            <div class="label" i18n="transaction.confirmed-at">Confirmed at</div>
@@ -111,14 +113,14 @@
      </div>
    </div>

-    <div class="bottom-panel">
+    <div class="bottom-panel" *ngIf="!error || waitingForTransaction">
      @if (isLoading) {
        <div class="progress-icon">
          <div class="spinner-border text-light" style="width: 1em; height: 1em"></div>
        </div>
        <span class="explainer">&nbsp;</span>
      } @else {
-        @if (!tx.status?.confirmed && showAccelerationSummary) {
+        @if (tx && !tx.status?.confirmed && showAccelerationSummary) {
          <ng-container *ngIf="(ETA$ | async) as eta;">
            <app-accelerate-checkout
              *ngIf="(da$ | async) as da;"
@@ -135,7 +137,7 @@
            ></app-accelerate-checkout>
          </ng-container>
        }
-        <div class="status-panel d-flex flex-column h-100 w-100 justify-content-center align-items-center" [class.small-status]="!tx.status?.confirmed && showAccelerationSummary">
+        <div class="status-panel d-flex flex-column h-100 w-100 justify-content-center align-items-center" [class.small-status]="tx && !tx.status?.confirmed && showAccelerationSummary">
          @if (tx?.acceleration && !tx.status?.confirmed) {
            <div class="progress-icon">
              <fa-icon [icon]="['fas', 'wand-magic-sparkles']" [fixedWidth]="true"></fa-icon>
@@ -184,9 +186,15 @@
        </div>
      }
    </div>
+    
+    <div class="bottom-panel" *ngIf="error && !waitingForTransaction">
+      <app-http-error [error]="error">
+        <span i18n="transaction.error.loading-transaction-data">Error loading transaction data.</span>
+      </app-http-error>
+    </div>

    <div class="footer-link"
-      [routerLink]="['/tx' | relativeUrl, tx?.txid]"
+      [routerLink]="['/tx' | relativeUrl, tx?.txid || txId]"
      [queryParams]="{ mode: 'details' }"
      queryParamsHandling="merge"
    >
--- a/frontend/src/app/components/tracker/tracker.component.ts
+++ b/frontend/src/app/components/tracker/tracker.component.ts
@@ -286,14 +286,14 @@ export class TrackerComponent implements OnInit, OnDestroy {
        this.accelerationInfo = null;
      }),
      switchMap((blockHash: string) => {
-        return this.servicesApiService.getAccelerationHistory$({ blockHash });
+        return this.servicesApiService.getAllAccelerationHistory$({ blockHash }, null, this.txId);
      }),
      catchError(() => {
        return of(null);
      })
    ).subscribe((accelerationHistory) => {
      for (const acceleration of accelerationHistory) {
-        if (acceleration.txid === this.txId && (acceleration.status === 'completed' || acceleration.status === 'completed_provisional')) {
+        if (acceleration.txid === this.txId && (acceleration.status === 'completed' || acceleration.status === 'completed_provisional') && acceleration.pools.includes(acceleration.minedByPoolUniqueId)) {
          const boostCost = acceleration.boostCost || acceleration.bidBoost;
          acceleration.acceleratedFeeRate = Math.max(acceleration.effectiveFee, acceleration.effectiveFee + boostCost) / acceleration.effectiveVsize;
          acceleration.boost = boostCost;
@@ -747,7 +747,7 @@ export class TrackerComponent implements OnInit, OnDestroy {

  checkAccelerationEligibility() {
    if (this.tx) {
-      this.tx.flags = getTransactionFlags(this.tx);
+      this.tx.flags = getTransactionFlags(this.tx, null, null, this.tx.status?.block_time, this.stateService.network);
      const replaceableInputs = (this.tx.flags & (TransactionFlags.sighash_none | TransactionFlags.sighash_acp)) > 0n;
      const highSigop = (this.tx.sigops * 20) > this.tx.weight;
      this.eligibleForAcceleration = !replaceableInputs && !highSigop;
--- a/frontend/src/app/components/trademark-policy/trademark-policy.component.html
+++ b/frontend/src/app/components/trademark-policy/trademark-policy.component.html
@@ -8,7 +8,7 @@
  <div *ngIf="officialMempoolSpace">
    <h2>Trademark Policy and Guidelines</h2>
    <h5>The Mempool Open Source Project &reg;</h5>
-    <h6>Updated: July 3, 2024</h6>
+    <h6>Updated: August 19, 2024</h6>
    <br>

    <div class="text-left">
@@ -95,16 +95,31 @@
            <p>The mempool Square Logo</p>
            <br><br>

-            <app-svg-images name="accelerator" height="76px"></app-svg-images>
+            <app-svg-images name="accelerator" style="width: 500px; max-width: 80%"></app-svg-images>
            <br><br>
            <p>The Mempool Accelerator Logo</p>
            <br><br>

+            <img src="/resources/mempool-research.png" style="width: 500px; max-width: 80%">
+            <br><br>
+            <p>The mempool research Logo</p>
+            <br><br>
+
            <app-svg-images name="goggles" height="96px"></app-svg-images>
            <br><br>
            <p>The Mempool Goggles Logo</p>
            <br><br>

+            <img src="/resources/mempool-transaction.png" style="width: 500px; max-width: 80%">
+            <br><br>
+            <p>The mempool transaction Logo</p>
+            <br><br>
+
+            <img src="/resources/mempool-block-visualization.png" style="width: 500px; max-width: 80%">
+            <br><br>
+            <p>The mempool block visualization Logo</p>
+            <br><br>
+
            <img src="/resources/mempool-blocks-2-3-logo.jpeg" style="width: 500px; max-width: 80%">
            <br><br>
            <p>The mempool Blocks Logo</p>
--- a/Show More
+++ b/Show More