Merge pull request #3995 from mempool/mononaut/acceleration-viz

Acceleration visualization
2023-08-04 15:34:02 +09:00 · 2023-08-04 15:34:02 +09:00 · 989e4832cc
commit 989e4832cc
parent 0d777c24c5 c3f83f74ce
62 changed files with 667 additions and 149 deletions
--- a/backend/mempool-config.sample.json
+++ b/backend/mempool-config.sample.json
@ -137,5 +137,9 @@
      "trusted",
      "servers"
    ]
+  },
+  "MEMPOOL_SERVICES": {
+    "API": "https://mempool.space/api",
+    "ACCELERATIONS": false
  }
 }
--- a/backend/rust-gbt/index.d.ts
+++ b/backend/rust-gbt/index.d.ts
@ -12,6 +12,10 @@ export interface ThreadTransaction {
  effectiveFeePerVsize: number
  inputs: Array<number>
 }
+export interface ThreadAcceleration {
+  uid: number
+  delta: number
+}
 export class GbtGenerator {
  constructor()
  /**
@ -19,13 +23,13 @@ export class GbtGenerator {
   *
   * Rejects if the thread panics or if the Mutex is poisoned.
   */
-  make(mempool: Array<ThreadTransaction>, maxUid: number): Promise<GbtResult>
+  make(mempool: Array<ThreadTransaction>, accelerations: Array<ThreadAcceleration>, maxUid: number): Promise<GbtResult>
  /**
   * # Errors
   *
   * Rejects if the thread panics or if the Mutex is poisoned.
   */
-  update(newTxs: Array<ThreadTransaction>, removeTxs: Array<number>, maxUid: number): Promise<GbtResult>
+  update(newTxs: Array<ThreadTransaction>, removeTxs: Array<number>, accelerations: Array<ThreadAcceleration>, maxUid: number): Promise<GbtResult>
 }
 /**
 * The result from calling the gbt function.
--- a/backend/rust-gbt/src/audit_transaction.rs
+++ b/backend/rust-gbt/src/audit_transaction.rs
@ -1,6 +1,6 @@
 use crate::{
    u32_hasher_types::{u32hashset_new, U32HasherState},
-    ThreadTransaction,
+    ThreadTransaction, thread_acceleration::ThreadAcceleration,
 };
 use std::{
    cmp::Ordering,
@ -88,44 +88,49 @@ impl Ord for AuditTransaction {
 }

 #[inline]
-fn calc_fee_rate(fee: f64, vsize: f64) -> f64 {
-    fee / (if vsize == 0.0 { 1.0 } else { vsize })
+fn calc_fee_rate(fee: u64, vsize: f64) -> f64 {
+    (fee as f64) / (if vsize == 0.0 { 1.0 } else { vsize })
 }

 impl AuditTransaction {
-    pub fn from_thread_transaction(tx: &ThreadTransaction) -> Self {
+    pub fn from_thread_transaction(tx: &ThreadTransaction, maybe_acceleration: Option<Option<&ThreadAcceleration>>) -> Self {
+        let fee_delta = match maybe_acceleration {
+            Some(Some(acceleration)) => acceleration.delta,
+            _ => 0.0
+        };
+        let fee = (tx.fee as u64) + (fee_delta as u64);
        // rounded up to the nearest integer
        let is_adjusted = tx.weight < (tx.sigops * 20);
        let sigop_adjusted_vsize = ((tx.weight + 3) / 4).max(tx.sigops * 5);
        let sigop_adjusted_weight = tx.weight.max(tx.sigops * 20);
-        let effective_fee_per_vsize = if is_adjusted {
-            calc_fee_rate(tx.fee, f64::from(sigop_adjusted_weight) / 4.0)
+        let effective_fee_per_vsize = if is_adjusted || fee_delta > 0.0 {
+            calc_fee_rate(fee, f64::from(sigop_adjusted_weight) / 4.0)
        } else {
            tx.effective_fee_per_vsize
        };
        Self {
            uid: tx.uid,
            order: tx.order,
-            fee: tx.fee as u64,
+            fee,
            weight: tx.weight,
            sigop_adjusted_weight,
            sigop_adjusted_vsize,
            sigops: tx.sigops,
-            adjusted_fee_per_vsize: calc_fee_rate(tx.fee, f64::from(sigop_adjusted_vsize)),
+            adjusted_fee_per_vsize: calc_fee_rate(fee, f64::from(sigop_adjusted_vsize)),
            effective_fee_per_vsize,
            dependency_rate: f64::INFINITY,
            inputs: tx.inputs.clone(),
            relatives_set_flag: false,
            ancestors: u32hashset_new(),
            children: u32hashset_new(),
-            ancestor_fee: tx.fee as u64,
+            ancestor_fee: fee,
            ancestor_sigop_adjusted_weight: sigop_adjusted_weight,
            ancestor_sigop_adjusted_vsize: sigop_adjusted_vsize,
            ancestor_sigops: tx.sigops,
            score: 0.0,
            used: false,
            modified: false,
-            dirty: effective_fee_per_vsize != tx.effective_fee_per_vsize,
+            dirty: effective_fee_per_vsize != tx.effective_fee_per_vsize || fee_delta > 0.0,
        }
    }

@ -156,7 +161,7 @@ impl AuditTransaction {
        // grows, so if we think of 0 as "grew infinitely" then dependency_rate would be
        // the smaller of the two. If either side is NaN, the other side is returned.
        self.dependency_rate.min(calc_fee_rate(
-            self.ancestor_fee as f64,
+            self.ancestor_fee,
            f64::from(self.ancestor_sigop_adjusted_weight) / 4.0,
        ))
    }
@ -172,7 +177,7 @@ impl AuditTransaction {
    #[inline]
    fn calc_new_score(&mut self) {
        self.score = self.adjusted_fee_per_vsize.min(calc_fee_rate(
-            self.ancestor_fee as f64,
+            self.ancestor_fee,
            f64::from(self.ancestor_sigop_adjusted_vsize),
        ));
    }
--- a/backend/rust-gbt/src/gbt.rs
+++ b/backend/rust-gbt/src/gbt.rs
@ -5,7 +5,7 @@ use tracing::{info, trace};
 use crate::{
    audit_transaction::{partial_cmp_uid_score, AuditTransaction},
    u32_hasher_types::{u32hashset_new, u32priority_queue_with_capacity, U32HasherState},
-    GbtResult, ThreadTransactionsMap,
+    GbtResult, ThreadTransactionsMap, thread_acceleration::ThreadAcceleration,
 };

 const MAX_BLOCK_WEIGHT_UNITS: u32 = 4_000_000 - 4_000;
@ -53,7 +53,13 @@ impl Ord for TxPriority {
 // TODO: Make gbt smaller to fix these lints.
 #[allow(clippy::too_many_lines)]
 #[allow(clippy::cognitive_complexity)]
-pub fn gbt(mempool: &mut ThreadTransactionsMap, max_uid: usize) -> GbtResult {
+pub fn gbt(mempool: &mut ThreadTransactionsMap, accelerations: &[ThreadAcceleration], max_uid: usize) -> GbtResult {
+    let mut indexed_accelerations = Vec::with_capacity(max_uid + 1);
+    indexed_accelerations.resize(max_uid + 1, None);
+    for acceleration in accelerations {
+        indexed_accelerations[acceleration.uid as usize] = Some(acceleration);
+    }
+
    let mempool_len = mempool.len();
    let mut audit_pool: AuditPool = Vec::with_capacity(max_uid + 1);
    audit_pool.resize(max_uid + 1, None);
@ -63,7 +69,8 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap, max_uid: usize) -> GbtResult {

    info!("Initializing working structs");
    for (uid, tx) in &mut *mempool {
-        let audit_tx = AuditTransaction::from_thread_transaction(tx);
+        let acceleration = indexed_accelerations.get(*uid as usize);
+        let audit_tx = AuditTransaction::from_thread_transaction(tx, acceleration.copied());
        // Safety: audit_pool and mempool_stack must always contain the same transactions
        audit_pool[*uid as usize] = Some(ManuallyDrop::new(audit_tx));
        mempool_stack.push(*uid);
--- a/backend/rust-gbt/src/lib.rs
+++ b/backend/rust-gbt/src/lib.rs
@ -9,6 +9,7 @@
 use napi::bindgen_prelude::Result;
 use napi_derive::napi;
 use thread_transaction::ThreadTransaction;
+use thread_acceleration::ThreadAcceleration;
 use tracing::{debug, info, trace};
 use tracing_log::LogTracer;
 use tracing_subscriber::{EnvFilter, FmtSubscriber};
@ -19,6 +20,7 @@ use std::sync::{Arc, Mutex};
 mod audit_transaction;
 mod gbt;
 mod thread_transaction;
+mod thread_acceleration;
 mod u32_hasher_types;

 use u32_hasher_types::{u32hashmap_with_capacity, U32HasherState};
@ -74,10 +76,11 @@ impl GbtGenerator {
    ///
    /// Rejects if the thread panics or if the Mutex is poisoned.
    #[napi]
-    pub async fn make(&self, mempool: Vec<ThreadTransaction>, max_uid: u32) -> Result<GbtResult> {
+    pub async fn make(&self, mempool: Vec<ThreadTransaction>, accelerations: Vec<ThreadAcceleration>, max_uid: u32) -> Result<GbtResult> {
        trace!("make: Current State {:#?}", self.thread_transactions);
        run_task(
            Arc::clone(&self.thread_transactions),
+            accelerations,
            max_uid as usize,
            move |map| {
                for tx in mempool {
@ -96,11 +99,13 @@ impl GbtGenerator {
        &self,
        new_txs: Vec<ThreadTransaction>,
        remove_txs: Vec<u32>,
+        accelerations: Vec<ThreadAcceleration>,
        max_uid: u32,
    ) -> Result<GbtResult> {
        trace!("update: Current State {:#?}", self.thread_transactions);
        run_task(
            Arc::clone(&self.thread_transactions),
+            accelerations,
            max_uid as usize,
            move |map| {
                for tx in new_txs {
@ -141,6 +146,7 @@ pub struct GbtResult {
 /// to the `HashMap` as the only argument. (A move closure is recommended to meet the bounds)
 async fn run_task<F>(
    thread_transactions: Arc<Mutex<ThreadTransactionsMap>>,
+    accelerations: Vec<ThreadAcceleration>,
    max_uid: usize,
    callback: F,
 ) -> Result<GbtResult>
@ -159,7 +165,7 @@ where
        callback(&mut map);

        info!("Starting gbt algorithm for {} elements...", map.len());
-        let result = gbt::gbt(&mut map, max_uid);
+        let result = gbt::gbt(&mut map, &accelerations, max_uid);
        info!("Finished gbt algorithm for {} elements...", map.len());

        debug!(
--- a/backend/rust-gbt/src/thread_acceleration.rs
+++ b/backend/rust-gbt/src/thread_acceleration.rs
@ -0,0 +1,8 @@
+use napi_derive::napi;
+
+#[derive(Debug)]
+#[napi(object)]
+pub struct ThreadAcceleration {
+    pub uid: u32,
+    pub delta: f64, // fee delta
+}
--- a/backend/src/fixtures/mempool-config.template.json
+++ b/backend/src/fixtures/mempool-config.template.json
@ -129,6 +129,10 @@
    "AUDIT_START_HEIGHT": 774000,
    "SERVERS": []
  },
+  "MEMPOOL_SERVICES": {
+    "API": "",
+    "ACCELERATIONS": false
+  },
  "REDIS": {
    "ENABLED": false,
    "UNIX_SOCKET_PATH": "/tmp/redis.sock"
--- a/backend/src/tests/config.test.ts
+++ b/backend/src/tests/config.test.ts
@ -129,6 +129,11 @@ describe('Mempool Backend Config', () => {
        SERVERS: []
      });

+      expect(config.MEMPOOL_SERVICES).toStrictEqual({
+        API: "",
+        ACCELERATIONS: false,
+      });
+
      expect(config.REDIS).toStrictEqual({
        ENABLED: false,
        UNIX_SOCKET_PATH: ''
@ -167,6 +172,8 @@ describe('Mempool Backend Config', () => {

      expect(config.EXTERNAL_DATA_SERVER).toStrictEqual(fixture.EXTERNAL_DATA_SERVER);

+      expect(config.MEMPOOL_SERVICES).toStrictEqual(fixture.MEMPOOL_SERVICES);
+
      expect(config.REDIS).toStrictEqual(fixture.REDIS);
    });
  });
--- a/backend/src/tests/gbt/gbt-tests.ts
+++ b/backend/src/tests/gbt/gbt-tests.ts
@ -15,7 +15,7 @@ describe('Rust GBT', () => {
  test('should produce the same template as getBlockTemplate from Bitcoin Core', async () => {
    const rustGbt = new GbtGenerator();
    const { mempool, maxUid } = mempoolFromArrayBuffer(vectorBuffer.buffer);
-    const result = await rustGbt.make(mempool, maxUid);
+    const result = await rustGbt.make(mempool, [], maxUid);

    const blocks: [string, number][][] = result.blocks.map(block => {
      return block.map(uid => [vectorUidMap.get(uid) || 'missing', uid]);
--- a/backend/src/api/audit.ts
+++ b/backend/src/api/audit.ts
@ -6,16 +6,17 @@ import rbfCache from './rbf-cache';
 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 })
-   : { censored: string[], added: string[], fresh: string[], sigop: string[], fullrbf: string[], score: number, similarity: number } {
+  auditBlock(transactions: MempoolTransactionExtended[], projectedBlocks: MempoolBlockWithTransactions[], mempool: { [txId: string]: MempoolTransactionExtended }, useAccelerations: boolean = false)
+   : { censored: string[], added: string[], fresh: string[], sigop: string[], fullrbf: string[], accelerated: string[], score: number, similarity: number } {
    if (!projectedBlocks?.[0]?.transactionIds || !mempool) {
-      return { censored: [], added: [], fresh: [], sigop: [], fullrbf: [], score: 0, similarity: 1 };
+      return { censored: [], added: [], fresh: [], sigop: [], fullrbf: [], accelerated: [], score: 0, similarity: 1 };
    }

    const matches: string[] = []; // present in both mined block and template
    const added: string[] = []; // present in mined block, not in template
    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 = {};
    let displacedWeight = 0;
@ -28,6 +29,9 @@ class Audit {
    const now = Math.round((Date.now() / 1000));
    for (const tx of transactions) {
      inBlock[tx.txid] = tx;
+      if (mempool[tx.txid] && mempool[tx.txid].acceleration) {
+        accelerated.push(tx.txid);
+      }
    }
    // coinbase is always expected
    if (transactions[0]) {
@ -149,6 +153,7 @@ class Audit {
      fresh,
      sigop: [],
      fullrbf: rbf,
+      accelerated,
      score,
      similarity,
    };
--- a/backend/src/api/bitcoin/bitcoin.routes.ts
+++ b/backend/src/api/bitcoin/bitcoin.routes.ts
@ -214,6 +214,7 @@ class BitcoinRoutes {
          effectiveFeePerVsize: tx.effectiveFeePerVsize || null,
          sigops: tx.sigops,
          adjustedVsize: tx.adjustedVsize,
+          acceleration: tx.acceleration
        });
        return;
      }
--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@ -111,6 +111,7 @@ export class Common {
      fee: tx.fee || 0,
      vsize: tx.weight / 4,
      value: tx.vout.reduce((acc, vout) => acc + (vout.value ? vout.value : 0), 0),
+      acc: tx.acceleration || undefined,
      rate: tx.effectiveFeePerVsize,
    };
  }
@ -460,7 +461,7 @@ export class Common {
    };
  }

-  static calcEffectiveFeeStatistics(transactions: { weight: number, fee: number, effectiveFeePerVsize?: number, txid: string }[]): EffectiveFeeStats {
+  static calcEffectiveFeeStatistics(transactions: { weight: number, fee: number, effectiveFeePerVsize?: number, txid: string, acceleration?: boolean }[]): EffectiveFeeStats {
    const sortedTxs = transactions.map(tx => { return { txid: tx.txid, weight: tx.weight, rate: tx.effectiveFeePerVsize || ((tx.fee || 0) / (tx.weight / 4)) }; }).sort((a, b) => a.rate - b.rate);

    let weightCount = 0;
--- 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 = 64;
+  private static currentVersion = 65;
  private queryTimeout = 3600_000;
  private statisticsAddedIndexed = false;
  private uniqueLogs: string[] = [];
@ -548,6 +548,11 @@ class DatabaseMigration {
      await this.$executeQuery('ALTER TABLE `nodes` ADD features text NULL');
      await this.updateToSchemaVersion(64);
    }
+
+    if (databaseSchemaVersion < 65 && isBitcoin === true) {
+      await this.$executeQuery('ALTER TABLE `blocks_audits` ADD accelerated_txs JSON DEFAULT "[]"');
+      await this.updateToSchemaVersion(65);
+    }
  }

  /**
--- a/backend/src/api/mempool-blocks.ts
+++ b/backend/src/api/mempool-blocks.ts
@ -1,10 +1,11 @@
-import { GbtGenerator, GbtResult, ThreadTransaction as RustThreadTransaction } from '../../rust-gbt';
+import { GbtGenerator, GbtResult, ThreadTransaction as RustThreadTransaction, ThreadAcceleration as RustThreadAcceleration } from '../../rust-gbt';
 import logger from '../logger';
-import { MempoolBlock, MempoolTransactionExtended, TransactionStripped, MempoolBlockWithTransactions, MempoolBlockDelta, Ancestor, CompactThreadTransaction, EffectiveFeeStats } from '../mempool.interfaces';
+import { MempoolBlock, MempoolTransactionExtended, TransactionStripped, MempoolBlockWithTransactions, MempoolBlockDelta, Ancestor, CompactThreadTransaction, EffectiveFeeStats, PoolTag } from '../mempool.interfaces';
 import { Common, OnlineFeeStatsCalculator } from './common';
 import config from '../config';
 import { Worker } from 'worker_threads';
 import path from 'path';
+import mempool from './mempool';

 const MAX_UINT32 = Math.pow(2, 32) - 1;

@ -170,7 +171,7 @@ class MempoolBlocks {
    for (let i = 0; i < Math.max(mempoolBlocks.length, prevBlocks.length); i++) {
      let added: TransactionStripped[] = [];
      let removed: string[] = [];
-      const changed: { txid: string, rate: number | undefined }[] = [];
+      const changed: { txid: string, rate: number | undefined, acc: boolean | undefined }[] = [];
      if (mempoolBlocks[i] && !prevBlocks[i]) {
        added = mempoolBlocks[i].transactions;
      } else if (!mempoolBlocks[i] && prevBlocks[i]) {
@ -192,8 +193,8 @@ class MempoolBlocks {
        mempoolBlocks[i].transactions.forEach(tx => {
          if (!prevIds[tx.txid]) {
            added.push(tx);
-          } else if (tx.rate !== prevIds[tx.txid].rate) {
-            changed.push({ txid: tx.txid, rate: tx.rate });
+          } else if (tx.rate !== prevIds[tx.txid].rate || tx.acc !== prevIds[tx.txid].acc) {
+            changed.push({ txid: tx.txid, rate: tx.rate, acc: tx.acc });
          }
        });
      }
@ -206,14 +207,19 @@ class MempoolBlocks {
    return mempoolBlockDeltas;
  }

-  public async $makeBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, saveResults: boolean = false): Promise<MempoolBlockWithTransactions[]> {
+  public async $makeBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, saveResults: boolean = false, useAccelerations: boolean = false, accelerationPool?: number): Promise<MempoolBlockWithTransactions[]> {
    const start = Date.now();

    // reset mempool short ids
-    this.resetUids();
-    for (const tx of Object.values(newMempool)) {
-      this.setUid(tx);
+    if (saveResults) {
+      this.resetUids();
    }
+    // set missing short ids
+    for (const tx of Object.values(newMempool)) {
+      this.setUid(tx, !saveResults);
+    }
+
+    const accelerations = useAccelerations ? mempool.getAccelerations() : {};

    // prepare a stripped down version of the mempool with only the minimum necessary data
    // to reduce the overhead of passing this data to the worker thread
@ -222,7 +228,7 @@ class MempoolBlocks {
      if (entry.uid !== null && entry.uid !== undefined) {
        const stripped = {
          uid: entry.uid,
-          fee: entry.fee,
+          fee: entry.fee + (useAccelerations && (!accelerationPool || accelerations[entry.txid]?.pools?.includes(accelerationPool)) ? (accelerations[entry.txid]?.feeDelta || 0) : 0),
          weight: (entry.adjustedVsize * 4),
          sigops: entry.sigops,
          feePerVsize: entry.adjustedFeePerVsize || entry.feePerVsize,
@ -262,7 +268,7 @@ class MempoolBlocks {
      // clean up thread error listener
      this.txSelectionWorker?.removeListener('error', threadErrorListener);

-      const processed = this.processBlockTemplates(newMempool, blocks, null, Object.entries(rates), Object.values(clusters), saveResults);
+      const processed = this.processBlockTemplates(newMempool, blocks, null, Object.entries(rates), Object.values(clusters), accelerations, accelerationPool, saveResults);

      logger.debug(`makeBlockTemplates completed in ${(Date.now() - start)/1000} seconds`);

@ -273,25 +279,29 @@ class MempoolBlocks {
    return this.mempoolBlocks;
  }

-  public async $updateBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, added: MempoolTransactionExtended[], removed: MempoolTransactionExtended[], saveResults: boolean = false): Promise<void> {
+  public async $updateBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, added: MempoolTransactionExtended[], removed: MempoolTransactionExtended[], accelerationDelta: string[] = [], saveResults: boolean = false, useAccelerations: boolean = false): Promise<void> {
    if (!this.txSelectionWorker) {
      // need to reset the worker
-      await this.$makeBlockTemplates(newMempool, saveResults);
+      await this.$makeBlockTemplates(newMempool, saveResults, useAccelerations);
      return;
    }

    const start = Date.now();

-    for (const tx of Object.values(added)) {
+    const accelerations = useAccelerations ? mempool.getAccelerations() : {};
+    const addedAndChanged: MempoolTransactionExtended[] = useAccelerations ? accelerationDelta.map(txid => newMempool[txid]).filter(tx => tx != null).concat(added) : added;
+
+    for (const tx of addedAndChanged) {
      this.setUid(tx, true);
    }
-    const removedUids = removed.map(tx => this.getUid(tx)).filter(uid => (uid !== null && uid !== undefined)) as number[];
+    const removedUids = removed.map(tx => this.getUid(tx)).filter(uid => uid != null) as number[];
+
    // prepare a stripped down version of the mempool with only the minimum necessary data
    // to reduce the overhead of passing this data to the worker thread
-    const addedStripped: CompactThreadTransaction[] = added.filter(entry => (entry.uid !== null && entry.uid !== undefined)).map(entry => {
+    const addedStripped: CompactThreadTransaction[] = addedAndChanged.filter(entry => entry.uid != null).map(entry => {
      return {
        uid: entry.uid || 0,
-        fee: entry.fee,
+        fee: entry.fee + (useAccelerations ? (accelerations[entry.txid]?.feeDelta || 0) : 0),
        weight: (entry.adjustedVsize * 4),
        sigops: entry.sigops,
        feePerVsize: entry.adjustedFeePerVsize || entry.feePerVsize,
@ -318,7 +328,7 @@ class MempoolBlocks {
      // clean up thread error listener
      this.txSelectionWorker?.removeListener('error', threadErrorListener);

-      this.processBlockTemplates(newMempool, blocks, null, Object.entries(rates), Object.values(clusters), saveResults);
+      this.processBlockTemplates(newMempool, blocks, null, Object.entries(rates), Object.values(clusters), accelerations, null, saveResults);
      logger.debug(`updateBlockTemplates completed in ${(Date.now() - start) / 1000} seconds`);
    } catch (e) {
      logger.err('updateBlockTemplates failed. ' + (e instanceof Error ? e.message : e));
@ -330,7 +340,8 @@ class MempoolBlocks {
    this.rustGbtGenerator = new GbtGenerator();
  }

-  private async $rustMakeBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, saveResults: boolean = false): Promise<MempoolBlockWithTransactions[]> {
+  public async $rustMakeBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, saveResults: boolean = false, useAccelerations: boolean = false, accelerationPool?: number): Promise<MempoolBlockWithTransactions[]> {
+    console.log('$rustMakeBlockTemplates');
    const start = Date.now();

    // reset mempool short ids
@ -346,16 +357,25 @@ class MempoolBlocks {
      tx.inputs = tx.vin.map(v => this.getUid(newMempool[v.txid])).filter(uid => (uid !== null && uid !== undefined)) as number[];
    }

+    const accelerations = useAccelerations ? mempool.getAccelerations() : {};
+    const acceleratedList = accelerationPool ? Object.values(accelerations).filter(acc => newMempool[acc.txid] && acc.pools.includes(accelerationPool)) : Object.values(accelerations).filter(acc => newMempool[acc.txid]);
+    const convertedAccelerations = acceleratedList.map(acc => {
+      return {
+        uid: this.getUid(newMempool[acc.txid]),
+        delta: acc.feeDelta,
+      };
+    });
+
    // run the block construction algorithm in a separate thread, and wait for a result
    const rustGbt = saveResults ? this.rustGbtGenerator : new GbtGenerator();
    try {
      const { blocks, blockWeights, rates, clusters } = this.convertNapiResultTxids(
-        await rustGbt.make(Object.values(newMempool) as RustThreadTransaction[], this.nextUid),
+        await rustGbt.make(Object.values(newMempool) as RustThreadTransaction[], convertedAccelerations as RustThreadAcceleration[], this.nextUid),
      );
      if (saveResults) {
        this.rustInitialized = true;
      }
-      const processed = this.processBlockTemplates(newMempool, blocks, blockWeights, rates, clusters, saveResults);
+      const processed = this.processBlockTemplates(newMempool, blocks, blockWeights, rates, clusters, accelerations, accelerationPool, saveResults);
      logger.debug(`RUST makeBlockTemplates completed in ${(Date.now() - start)/1000} seconds`);
      return processed;
    } catch (e) {
@ -367,20 +387,20 @@ class MempoolBlocks {
    return this.mempoolBlocks;
  }

-  public async $oneOffRustBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }): Promise<MempoolBlockWithTransactions[]> {
-    return this.$rustMakeBlockTemplates(newMempool, false);
+  public async $oneOffRustBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, useAccelerations: boolean, accelerationPool?: number): Promise<MempoolBlockWithTransactions[]> {
+    return this.$rustMakeBlockTemplates(newMempool, false, useAccelerations, accelerationPool);
  }

-  public async $rustUpdateBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, mempoolSize: number, added: MempoolTransactionExtended[], removed: MempoolTransactionExtended[]): Promise<void> {
+  public async $rustUpdateBlockTemplates(newMempool: { [txid: string]: MempoolTransactionExtended }, mempoolSize: number, added: MempoolTransactionExtended[], removed: MempoolTransactionExtended[], useAccelerations: boolean, accelerationPool?: number): Promise<MempoolBlockWithTransactions[]> {
    // GBT optimization requires that uids never get too sparse
    // as a sanity check, we should also explicitly prevent uint32 uid overflow
    if (this.nextUid + added.length >= Math.min(Math.max(262144, 2 * mempoolSize), MAX_UINT32)) {
      this.resetRustGbt();
    }
+
    if (!this.rustInitialized) {
      // need to reset the worker
-      await this.$rustMakeBlockTemplates(newMempool, true);
-      return;
+      return this.$rustMakeBlockTemplates(newMempool, true, useAccelerations, accelerationPool);
    }

    const start = Date.now();
@ -394,12 +414,22 @@ class MempoolBlocks {
    }
    const removedUids = removed.map(tx => this.getUid(tx)).filter(uid => (uid !== null && uid !== undefined)) as number[];

+    const accelerations = useAccelerations ? mempool.getAccelerations() : {};
+    const acceleratedList = accelerationPool ? Object.values(accelerations).filter(acc => newMempool[acc.txid] && acc.pools.includes(accelerationPool)) : Object.values(accelerations).filter(acc => newMempool[acc.txid]);
+    const convertedAccelerations = acceleratedList.map(acc => {
+      return {
+        uid: this.getUid(newMempool[acc.txid]),
+        delta: acc.feeDelta,
+      };
+    });
+
    // run the block construction algorithm in a separate thread, and wait for a result
    try {
      const { blocks, blockWeights, rates, clusters } = this.convertNapiResultTxids(
        await this.rustGbtGenerator.update(
          added as RustThreadTransaction[],
          removedUids,
+          convertedAccelerations as RustThreadAcceleration[],
          this.nextUid,
        ),
      );
@ -407,17 +437,19 @@ class MempoolBlocks {
      if (mempoolSize !== resultMempoolSize) {
        throw new Error('GBT returned wrong number of transactions, cache is probably out of sync');
      } else {
-        this.processBlockTemplates(newMempool, blocks, blockWeights, rates, clusters, true);
+        const processed = this.processBlockTemplates(newMempool, blocks, blockWeights, rates, clusters, accelerations, accelerationPool, true);
+        this.removeUids(removedUids);
+        logger.debug(`RUST updateBlockTemplates completed in ${(Date.now() - start)/1000} seconds`);
+        return processed;
      }
-      this.removeUids(removedUids);
-      logger.debug(`RUST updateBlockTemplates completed in ${(Date.now() - start)/1000} seconds`);
    } catch (e) {
      logger.err('RUST updateBlockTemplates failed. ' + (e instanceof Error ? e.message : e));
      this.resetRustGbt();
+      return this.mempoolBlocks;
    }
  }

-  private processBlockTemplates(mempool: { [txid: string]: MempoolTransactionExtended }, blocks: string[][], blockWeights: number[] | null, rates: [string, number][], clusters: string[][], saveResults): MempoolBlockWithTransactions[] {
+  private processBlockTemplates(mempool: { [txid: string]: MempoolTransactionExtended }, blocks: string[][], blockWeights: number[] | null, rates: [string, number][], clusters: string[][], accelerations, accelerationPool, saveResults): MempoolBlockWithTransactions[] {
    for (const [txid, rate] of rates) {
      if (txid in mempool) {
        mempool[txid].effectiveFeePerVsize = rate;
@ -468,6 +500,8 @@ class MempoolBlocks {
      }
    }

+    const isAccelerated : { [txid: string]: boolean } = {};
+
    const sizeLimit = (config.MEMPOOL.BLOCK_WEIGHT_UNITS / 4) * 1.2;
    // update this thread's mempool with the results
    let mempoolTx: MempoolTransactionExtended;
@ -496,6 +530,17 @@ class MempoolBlocks {
            mempoolTx.cpfpChecked = true;
          }

+          const acceleration = accelerations[txid];
+          if (isAccelerated[txid] || (acceleration && (!accelerationPool || acceleration.pools.includes(accelerationPool)))) {
+            mempoolTx.acceleration = true;
+            for (const ancestor of mempoolTx.ancestors || []) {
+              mempool[ancestor.txid].acceleration = true;
+              isAccelerated[ancestor.txid] = true;
+            }
+          } else {
+            delete mempoolTx.acceleration;
+          }
+
          // online calculation of stack-of-blocks fee stats
          if (hasBlockStack && blockIndex === lastBlockIndex && feeStatsCalculator) {
            feeStatsCalculator.processNext(mempoolTx);
@ -532,7 +577,7 @@ class MempoolBlocks {

  private dataToMempoolBlocks(transactionIds: string[], transactions: MempoolTransactionExtended[], totalSize: number, totalWeight: number, totalFees: number, feeStats?: EffectiveFeeStats ): MempoolBlockWithTransactions {
    if (!feeStats) {
-      feeStats = Common.calcEffectiveFeeStatistics(transactions);
+      feeStats = Common.calcEffectiveFeeStatistics(transactions.filter(tx => !tx.acceleration));
    }
    return {
      blockSize: totalSize,
--- a/backend/src/api/mempool.ts
+++ b/backend/src/api/mempool.ts
@ -9,6 +9,7 @@ import loadingIndicators from './loading-indicators';
 import bitcoinClient from './bitcoin/bitcoin-client';
 import bitcoinSecondClient from './bitcoin/bitcoin-second-client';
 import rbfCache from './rbf-cache';
+import accelerationApi, { Acceleration } from './services/acceleration';
 import redisCache from './redis-cache';

 class Mempool {
@ -19,9 +20,11 @@ class Mempool {
  private mempoolInfo: IBitcoinApi.MempoolInfo = { loaded: false, size: 0, bytes: 0, usage: 0, total_fee: 0,
                                                    maxmempool: 300000000, mempoolminfee: 0.00001000, minrelaytxfee: 0.00001000 };
  private mempoolChangedCallback: ((newMempool: {[txId: string]: MempoolTransactionExtended; }, newTransactions: MempoolTransactionExtended[],
-    deletedTransactions: MempoolTransactionExtended[]) => void) | undefined;
+    deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[]) => void) | undefined;
  private $asyncMempoolChangedCallback: ((newMempool: {[txId: string]: MempoolTransactionExtended; }, mempoolSize: number, newTransactions: MempoolTransactionExtended[],
-    deletedTransactions: MempoolTransactionExtended[]) => Promise<void>) | undefined;
+    deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[]) => Promise<void>) | undefined;
+
+  private accelerations: { [txId: string]: Acceleration } = {};

  private txPerSecondArray: number[] = [];
  private txPerSecond: number = 0;
@ -66,12 +69,12 @@ class Mempool {
  }

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

@ -107,10 +110,10 @@ class Mempool {
      logger.debug(`Finished migrating cache transactions in ${((Date.now() - redisTimer) / 1000).toFixed(2)} seconds`);
    }
    if (this.mempoolChangedCallback) {
-      this.mempoolChangedCallback(this.mempoolCache, [], []);
+      this.mempoolChangedCallback(this.mempoolCache, [], [], []);
    }
    if (this.$asyncMempoolChangedCallback) {
-      await this.$asyncMempoolChangedCallback(this.mempoolCache, count, [], []);
+      await this.$asyncMempoolChangedCallback(this.mempoolCache, count, [], [], []);
    }
    this.addToSpendMap(Object.values(this.mempoolCache));
  }
@ -321,14 +324,19 @@ class Mempool {
    const newTransactionsStripped = newTransactions.map((tx) => Common.stripTransaction(tx));
    this.latestTransactions = newTransactionsStripped.concat(this.latestTransactions).slice(0, 6);

+    const accelerationDelta = await this.$updateAccelerations();
+    if (accelerationDelta.length) {
+      hasChange = true;
+    }
+
    this.mempoolCacheDelta = Math.abs(transactions.length - newMempoolSize);

    if (this.mempoolChangedCallback && (hasChange || deletedTransactions.length)) {
-      this.mempoolChangedCallback(this.mempoolCache, newTransactions, deletedTransactions);
+      this.mempoolChangedCallback(this.mempoolCache, newTransactions, deletedTransactions, accelerationDelta);
    }
    if (this.$asyncMempoolChangedCallback && (hasChange || deletedTransactions.length)) {
      this.updateTimerProgress(timer, 'running async mempool callback');
-      await this.$asyncMempoolChangedCallback(this.mempoolCache, newMempoolSize, newTransactions, deletedTransactions);
+      await this.$asyncMempoolChangedCallback(this.mempoolCache, newMempoolSize, newTransactions, deletedTransactions, accelerationDelta);
      this.updateTimerProgress(timer, 'completed async mempool callback');
    }

@ -352,6 +360,70 @@ class Mempool {
    this.clearTimer(timer);
  }

+  public getAccelerations(): { [txid: string]: Acceleration } {
+    return this.accelerations;
+  }
+
+  public async $updateAccelerations(): Promise<string[]> {
+    if (!config.MEMPOOL_SERVICES.ACCELERATIONS) {
+      return [];
+    }
+
+    try {
+      const newAccelerations = await accelerationApi.$fetchAccelerations();
+
+      const changed: string[] = [];
+
+      const newAccelerationMap: { [txid: string]: Acceleration } = {};
+      for (const acceleration of newAccelerations) {
+        newAccelerationMap[acceleration.txid] = acceleration;
+        if (this.accelerations[acceleration.txid] == null) {
+          // new acceleration
+          changed.push(acceleration.txid);
+        } else {
+          if (this.accelerations[acceleration.txid].feeDelta !== acceleration.feeDelta) {
+            // feeDelta changed
+            changed.push(acceleration.txid);
+          } else if (this.accelerations[acceleration.txid].pools?.length) {
+            let poolsChanged = false;
+            const pools = new Set();
+            this.accelerations[acceleration.txid].pools.forEach(pool => {
+              pools.add(pool);
+            });
+            acceleration.pools.forEach(pool => {
+              if (!pools.has(pool)) {
+                poolsChanged = true;
+              } else {
+                pools.delete(pool);
+              }
+            });
+            if (pools.size > 0) {
+              poolsChanged = true;
+            }
+            if (poolsChanged) {
+              // pools changed
+              changed.push(acceleration.txid);
+            }
+          }
+        }
+      }
+
+      for (const oldTxid of Object.keys(this.accelerations)) {
+        if (!newAccelerationMap[oldTxid]) {
+          // removed
+          changed.push(oldTxid);
+        }
+      }
+
+      this.accelerations = newAccelerationMap;
+
+      return changed;
+    } catch (e: any) {
+      logger.debug(`Failed to update accelerations: ` + (e instanceof Error ? e.message : e));
+      return [];
+    }
+  }
+
  private startTimer() {
    const state: any = {
      start: Date.now(),
--- a/backend/src/api/mining/mining.ts
+++ b/backend/src/api/mining/mining.ts
@ -107,6 +107,7 @@ class Mining {
        slug: poolInfo.slug,
        avgMatchRate: poolInfo.avgMatchRate !== null ? Math.round(100 * poolInfo.avgMatchRate) / 100 : null,
        avgFeeDelta: poolInfo.avgFeeDelta,
+        poolUniqueId: poolInfo.poolUniqueId
      };
      poolsStats.push(poolStat);
    });
--- a/backend/src/api/services/acceleration.ts
+++ b/backend/src/api/services/acceleration.ts
@ -0,0 +1,30 @@
+import { query } from '../../utils/axios-query';
+import config from '../../config';
+import { BlockExtended, PoolTag } from '../../mempool.interfaces';
+
+export interface Acceleration {
+  txid: string,
+  feeDelta: number,
+  pools: number[],
+}
+
+class AccelerationApi {
+  public async $fetchAccelerations(): Promise<Acceleration[]> {
+    if (config.MEMPOOL_SERVICES.ACCELERATIONS) {
+      const response = await query(`${config.MEMPOOL_SERVICES.API}/accelerator/accelerations`);
+      return (response as Acceleration[]) || [];
+    } else {
+      return [];
+    }
+  }
+
+  public isAcceleratedBlock(block: BlockExtended, accelerations: Acceleration[]): boolean {
+    let anyAccelerated = false;
+    for (let i = 0; i < accelerations.length && !anyAccelerated; i++) {
+      anyAccelerated = anyAccelerated || accelerations[i].pools?.includes(block.extras.pool.id);
+    }
+    return anyAccelerated;
+  }
+}
+
+export default new AccelerationApi();
--- a/backend/src/api/websocket-handler.ts
+++ b/backend/src/api/websocket-handler.ts
@ -21,6 +21,8 @@ import Audit from './audit';
 import { deepClone } from '../utils/clone';
 import priceUpdater from '../tasks/price-updater';
 import { ApiPrice } from '../repositories/PricesRepository';
+import accelerationApi from './services/acceleration';
+import mempool from './mempool';

 // valid 'want' subscriptions
 const wantable = [
@ -172,9 +174,15 @@ class WebsocketHandler {
              }
              const tx = memPool.getMempool()[trackTxid];
              if (tx && tx.position) {
+                const position: { block: number, vsize: number, accelerated?: boolean } = {
+                  ...tx.position
+                };
+                if (tx.acceleration) {
+                  position.accelerated = tx.acceleration;
+                }
                response['txPosition'] = JSON.stringify({
                  txid: trackTxid,
-                  position: tx.position,
+                  position
                });
              }
            } else {
@ -390,7 +398,7 @@ class WebsocketHandler {
  }

  async $handleMempoolChange(newMempool: { [txid: string]: MempoolTransactionExtended }, mempoolSize: number,
-    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[]): Promise<void> {
+    newTransactions: MempoolTransactionExtended[], deletedTransactions: MempoolTransactionExtended[], accelerationDelta: string[]): Promise<void> {
    if (!this.wss) {
      throw new Error('WebSocket.Server is not set');
    }
@ -399,9 +407,9 @@ class WebsocketHandler {

    if (config.MEMPOOL.ADVANCED_GBT_MEMPOOL) {
      if (config.MEMPOOL.RUST_GBT) {
-        await mempoolBlocks.$rustUpdateBlockTemplates(newMempool, mempoolSize, newTransactions, deletedTransactions);
+        await mempoolBlocks.$rustUpdateBlockTemplates(newMempool, mempoolSize, newTransactions, deletedTransactions, config.MEMPOOL_SERVICES.ACCELERATIONS);
      } else {
-        await mempoolBlocks.$updateBlockTemplates(newMempool, newTransactions, deletedTransactions, true);
+        await mempoolBlocks.$updateBlockTemplates(newMempool, newTransactions, deletedTransactions, accelerationDelta, true, config.MEMPOOL_SERVICES.ACCELERATIONS);
      }
    } else {
      mempoolBlocks.updateMempoolBlocks(newMempool, true);
@ -647,7 +655,10 @@ class WebsocketHandler {
        if (mempoolTx && mempoolTx.position) {
          response['txPosition'] = JSON.stringify({
            txid: trackTxid,
-            position: mempoolTx.position,
+            position: {
+              ...mempoolTx.position,
+              accelerated: mempoolTx.acceleration || undefined,
+            }
          });
        }
      }
@ -695,6 +706,7 @@ class WebsocketHandler {
    if (config.MEMPOOL.AUDIT && memPool.isInSync()) {
      let projectedBlocks;
      let auditMempool = _memPool;
+      const isAccelerated = config.MEMPOOL_SERVICES.ACCELERATIONS && accelerationApi.isAcceleratedBlock(block, Object.values(mempool.getAccelerations()));
      // template calculation functions have mempool side effects, so calculate audits using
      // a cloned copy of the mempool if we're running a different algorithm for mempool updates
      const separateAudit = config.MEMPOOL.ADVANCED_GBT_AUDIT !== config.MEMPOOL.ADVANCED_GBT_MEMPOOL;
@ -702,19 +714,27 @@ class WebsocketHandler {
        auditMempool = deepClone(_memPool);
        if (config.MEMPOOL.ADVANCED_GBT_AUDIT) {
          if (config.MEMPOOL.RUST_GBT) {
-            projectedBlocks = await mempoolBlocks.$oneOffRustBlockTemplates(auditMempool);
+            projectedBlocks = await mempoolBlocks.$oneOffRustBlockTemplates(auditMempool, isAccelerated, block.extras.pool.id);
          } else {
-            projectedBlocks = await mempoolBlocks.$makeBlockTemplates(auditMempool, false);
+            projectedBlocks = await mempoolBlocks.$makeBlockTemplates(auditMempool, false, isAccelerated, block.extras.pool.id);
          }
        } else {
          projectedBlocks = mempoolBlocks.updateMempoolBlocks(auditMempool, false);
        }
      } else {
-        projectedBlocks = mempoolBlocks.getMempoolBlocksWithTransactions();
+        if ((config.MEMPOOL_SERVICES.ACCELERATIONS)) {
+          if (config.MEMPOOL.RUST_GBT) {
+            projectedBlocks = await mempoolBlocks.$rustUpdateBlockTemplates(auditMempool, Object.keys(auditMempool).length, [], [], isAccelerated, block.extras.pool.id);
+          } else {
+            projectedBlocks = await mempoolBlocks.$makeBlockTemplates(auditMempool, false, isAccelerated, block.extras.pool.id);
+          }
+        } else {
+          projectedBlocks = mempoolBlocks.getMempoolBlocksWithTransactions();
+        }
      }

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

        const stripped = projectedBlocks[0]?.transactions ? projectedBlocks[0].transactions : [];
@ -743,6 +763,7 @@ class WebsocketHandler {
          freshTxs: fresh,
          sigopTxs: sigop,
          fullrbfTxs: fullrbf,
+          acceleratedTxs: accelerated,
          matchRate: matchRate,
          expectedFees: totalFees,
          expectedWeight: totalWeight,
@ -770,9 +791,9 @@ class WebsocketHandler {

    if (config.MEMPOOL.ADVANCED_GBT_MEMPOOL) {
      if (config.MEMPOOL.RUST_GBT) {
-        await mempoolBlocks.$rustUpdateBlockTemplates(_memPool, Object.keys(_memPool).length, [], transactions);
+        await mempoolBlocks.$rustUpdateBlockTemplates(_memPool, Object.keys(_memPool).length, [], transactions, true);
      } else {
-        await mempoolBlocks.$makeBlockTemplates(_memPool, true);
+        await mempoolBlocks.$makeBlockTemplates(_memPool, true, config.MEMPOOL_SERVICES.ACCELERATIONS);
      }
    } else {
      mempoolBlocks.updateMempoolBlocks(_memPool, true);
@ -836,7 +857,10 @@ class WebsocketHandler {
          if (mempoolTx && mempoolTx.position) {
            response['txPosition'] = JSON.stringify({
              txid: trackTxid,
-              position: mempoolTx.position,
+              position: {
+                ...mempoolTx.position,
+                accelerated: mempoolTx.acceleration || undefined,
+              }
            });
          }
        }
--- a/backend/src/config.ts
+++ b/backend/src/config.ts
@ -139,6 +139,10 @@ interface IConfig {
    AUDIT_START_HEIGHT: number;
    SERVERS: string[];
  },
+  MEMPOOL_SERVICES: {
+    API: string;
+    ACCELERATIONS: boolean;
+  },
  REDIS: {
    ENABLED: boolean;
    UNIX_SOCKET_PATH: string;
@ -282,6 +286,10 @@ const defaults: IConfig = {
    'AUDIT_START_HEIGHT': 774000,
    'SERVERS': [],
  },
+  'MEMPOOL_SERVICES': {
+    'API': '',
+    'ACCELERATIONS': false,
+  },
  'REDIS': {
    'ENABLED': false,
    'UNIX_SOCKET_PATH': '',
@ -306,6 +314,7 @@ class Config implements IConfig {
  EXTERNAL_DATA_SERVER: IConfig['EXTERNAL_DATA_SERVER'];
  MAXMIND: IConfig['MAXMIND'];
  REPLICATION: IConfig['REPLICATION'];
+  MEMPOOL_SERVICES: IConfig['MEMPOOL_SERVICES'];
  REDIS: IConfig['REDIS'];

  constructor() {
@ -327,6 +336,7 @@ class Config implements IConfig {
    this.EXTERNAL_DATA_SERVER = configs.EXTERNAL_DATA_SERVER;
    this.MAXMIND = configs.MAXMIND;
    this.REPLICATION = configs.REPLICATION;
+    this.MEMPOOL_SERVICES = configs.MEMPOOL_SERVICES;
    this.REDIS = configs.REDIS;
  }

--- a/backend/src/mempool.interfaces.ts
+++ b/backend/src/mempool.interfaces.ts
@ -20,6 +20,7 @@ export interface PoolInfo {
  slug: string;
  avgMatchRate: number | null;
  avgFeeDelta: number | null;
+  poolUniqueId: number;
 }

 export interface PoolStats extends PoolInfo {
@ -36,6 +37,7 @@ export interface BlockAudit {
  sigopTxs: string[],
  fullrbfTxs: string[],
  addedTxs: string[],
+  acceleratedTxs: string[],
  matchRate: number,
  expectedFees?: number,
  expectedWeight?: number,
@ -91,6 +93,7 @@ export interface TransactionExtended extends IEsploraApi.Transaction {
    block: number,
    vsize: number,
  };
+  acceleration?: boolean;
  uid?: number;
 }

@ -182,6 +185,7 @@ export interface TransactionStripped {
  fee: number;
  vsize: number;
  value: number;
+  acc?: boolean;
  rate?: number; // effective fee rate
 }

--- a/backend/src/replication/AuditReplication.ts
+++ b/backend/src/replication/AuditReplication.ts
@ -116,6 +116,7 @@ class AuditReplication {
      freshTxs: auditSummary.freshTxs || [],
      sigopTxs: auditSummary.sigopTxs || [],
      fullrbfTxs: auditSummary.fullrbfTxs || [],
+      acceleratedTxs: auditSummary.acceleratedTxs || [],
      matchRate: auditSummary.matchRate,
      expectedFees: auditSummary.expectedFees,
      expectedWeight: auditSummary.expectedWeight,
--- a/backend/src/repositories/BlocksAuditsRepository.ts
+++ b/backend/src/repositories/BlocksAuditsRepository.ts
@ -6,9 +6,9 @@ import { BlockAudit, AuditScore } from '../mempool.interfaces';
 class BlocksAuditRepositories {
  public async $saveAudit(audit: BlockAudit): Promise<void> {
    try {
-      await DB.query(`INSERT INTO blocks_audits(time, height, hash, missing_txs, added_txs, fresh_txs, sigop_txs, fullrbf_txs, match_rate, expected_fees, expected_weight)
-        VALUE (FROM_UNIXTIME(?), ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, [audit.time, audit.height, audit.hash, JSON.stringify(audit.missingTxs),
-          JSON.stringify(audit.addedTxs), JSON.stringify(audit.freshTxs), JSON.stringify(audit.sigopTxs), JSON.stringify(audit.fullrbfTxs), audit.matchRate, audit.expectedFees, audit.expectedWeight]);
+      await DB.query(`INSERT INTO blocks_audits(time, height, hash, missing_txs, added_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),
+          JSON.stringify(audit.addedTxs), 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
        logger.debug(`Cannot save block audit for block ${audit.hash} because it has already been indexed, ignoring`);
@ -69,6 +69,7 @@ class BlocksAuditRepositories {
        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
@ -83,6 +84,7 @@ class BlocksAuditRepositories {
        rows[0].freshTxs = JSON.parse(rows[0].freshTxs);
        rows[0].sigopTxs = JSON.parse(rows[0].sigopTxs);
        rows[0].fullrbfTxs = JSON.parse(rows[0].fullrbfTxs);
+        rows[0].acceleratedTxs = JSON.parse(rows[0].acceleratedTxs);
        rows[0].template = JSON.parse(rows[0].template);

        return rows[0];
--- a/backend/src/repositories/PoolsRepository.ts
+++ b/backend/src/repositories/PoolsRepository.ts
@ -40,7 +40,8 @@ class PoolsRepository {
          pools.link AS link,
          slug,
          AVG(blocks_audits.match_rate) AS avgMatchRate,
-          AVG((CAST(blocks.fees as SIGNED) - CAST(blocks_audits.expected_fees as SIGNED)) / NULLIF(CAST(blocks_audits.expected_fees as SIGNED), 0)) AS avgFeeDelta
+          AVG((CAST(blocks.fees as SIGNED) - CAST(blocks_audits.expected_fees as SIGNED)) / NULLIF(CAST(blocks_audits.expected_fees as SIGNED), 0)) AS avgFeeDelta,
+          unique_id as poolUniqueId
      FROM blocks
      JOIN pools on pools.id = pool_id
      LEFT JOIN blocks_audits ON blocks_audits.height = blocks.height
--- a/docker/backend/mempool-config.json
+++ b/docker/backend/mempool-config.json
@ -135,6 +135,10 @@
    "AUDIT_START_HEIGHT": __REPLICATION_AUDIT_START_HEIGHT__,
    "SERVERS": __REPLICATION_SERVERS__
  },
+  "MEMPOOL_SERVICES": {
+    "API": "__MEMPOOL_SERVICES_API__",
+    "ACCELERATIONS": __MEMPOOL_SERVICES_ACCELERATIONS__
+  },
  "REDIS": {
    "ENABLED": __REDIS_ENABLED__,
    "UNIX_SOCKET_PATH": "__REDIS_UNIX_SOCKET_PATH__"
--- a/docker/backend/start.sh
+++ b/docker/backend/start.sh
@ -137,6 +137,10 @@ __REPLICATION_AUDIT__=${REPLICATION_AUDIT:=true}
 __REPLICATION_AUDIT_START_HEIGHT__=${REPLICATION_AUDIT_START_HEIGHT:=774000}
 __REPLICATION_SERVERS__=${REPLICATION_SERVERS:=[]}

+# MEMPOOL_SERVICES
+__MEMPOOL_SERVICES_API__=${MEMPOOL_SERVICES_API:=""}
+__MEMPOOL_SERVICES_ACCELERATIONS__=${MEMPOOL_SERVICES_ACCELERATIONS:=false}
+
 # REDIS
 __REDIS_ENABLED__=${REDIS_ENABLED:=true}
 __REDIS_UNIX_SOCKET_PATH__=${REDIS_UNIX_SOCKET_PATH:=true}
@ -267,6 +271,10 @@ sed -i "s!__REPLICATION_AUDIT__!${__REPLICATION_AUDIT__}!g" mempool-config.json
 sed -i "s!__REPLICATION_AUDIT_START_HEIGHT__!${__REPLICATION_AUDIT_START_HEIGHT__}!g" mempool-config.json
 sed -i "s!__REPLICATION_SERVERS__!${__REPLICATION_SERVERS__}!g" mempool-config.json

+# MEMPOOL_SERVICES
+sed -i "s!__MEMPOOL_SERVICES_API__!${__MEMPOOL_SERVICES_API__}!g" mempool-config.json
+sed -i "s!__MEMPOOL_SERVICES_ACCELERATIONS__!${__MEMPOOL_SERVICES_ACCELERATIONS__}!g" mempool-config.json
+
 # REDIS
 sed -i "s!__REDIS_ENABLED__!${__REDIS_ENABLED__}!g" mempool-config.json
 sed -i "s!__REDIS_UNIX_SOCKET_PATH__!${__REDIS_UNIX_SOCKET_PATH__}!g" mempool-config.json
--- a/frontend/mempool-frontend-config.sample.json
+++ b/frontend/mempool-frontend-config.sample.json
@ -22,5 +22,6 @@
  "TESTNET_BLOCK_AUDIT_START_HEIGHT": 0,
  "SIGNET_BLOCK_AUDIT_START_HEIGHT": 0,
  "LIGHTNING": false,
-  "HISTORICAL_PRICE": true
+  "HISTORICAL_PRICE": true,
+  "ACCELERATOR": false
 }
--- a/frontend/src/app/components/about/about.component.html
+++ b/frontend/src/app/components/about/about.component.html
@ -31,6 +31,14 @@
    <track label="Português" kind="captions" srclang="pt" src="/resources/promo-video/pt.vtt" [attr.default]="showSubtitles('pt') ? '' : null">
  </video>

+  <ng-container *ngIf="false && officialMempoolSpace">
+    <h3 class="mt-5">Sponsor the project</h3>
+    <div class="d-flex justify-content-center" style="max-width: 90%; margin: 35px auto 75px auto; column-gap: 15px">
+      <a href="/sponsor" class="btn" style="background-color: rgba(152, 88, 255, 0.75); box-shadow: 0px 0px 50px 5px rgba(152, 88, 255, 0.75)" i18n="about.community-sponsor-button">Community</a>
+      <a href="/enterprise" class="btn" style="background-color: rgba(152, 88, 255, 0.75); box-shadow: 0px 0px 50px 5px rgba(152, 88, 255, 0.75)" i18n="about.enterprise-sponsor-button">Enterprise</a>
+    </div>
+  </ng-container>
+
  <div class="enterprise-sponsor" id="enterprise-sponsors">
    <h3 i18n="about.sponsors.enterprise.withRocket">Enterprise Sponsors 🚀</h3>
    <div class="wrapper">
@ -191,16 +199,41 @@
    </div>
  </div>

-  <div class="community-sponsor" id="community-sponsors">
-    <h3 i18n="about.sponsors.withHeart">Community Sponsors ❤️</h3>
+  <ng-container *ngIf="officialMempoolSpace">
+    <div *ngIf="profiles$ | async as profiles" id="community-sponsors">
+      <div class="community-sponsor" style="margin-bottom: 68px" *ngIf="profiles.whales.length > 0">
+        <h3 i18n="about.sponsors.withHeart">Whale Sponsors</h3>
+        <div class="wrapper">
+          <ng-container>
+            <ng-template ngFor let-sponsor [ngForOf]="profiles.whales">
+              <a [href]="'https://twitter.com/' + sponsor.username" target="_blank" rel="sponsored" [title]="sponsor.username">
+                <img class="image" [src]="'data:' + sponsor.image_mime + ';base64,' + sponsor.image" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
+              </a>
+            </ng-template>
+          </ng-container>
+        </div>
+      </div>

+      <div class="community-sponsor" style="margin-bottom: 68px" *ngIf="profiles.chads.length > 0">
+        <h3 i18n="about.sponsors.withHeart">Chad Sponsors</h3>
+        <div class="wrapper">
+          <ng-template ngFor let-sponsor [ngForOf]="profiles.chads">
+            <a [href]="'https://twitter.com/' + sponsor.username" target="_blank" rel="sponsored" [title]="sponsor.username">
+              <img class="image" [src]="'data:' + sponsor.image_mime + ';base64,' + sponsor.image" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
+            </a>
+          </ng-template>
+        </div>
+      </div>
+    </div>
+  </ng-container>
+
+  <div class="community-sponsor" style="margin-bottom: 68px">
+    <h3 i18n="about.sponsors.withHeart">OG Sponsors ❤️</h3>
    <div class="wrapper">
-      <ng-container *ngIf="sponsors$ | async as sponsors; else loadingSponsors">
-        <ng-template ngFor let-sponsor [ngForOf]="sponsors">
-          <a [href]="'https://twitter.com/' + sponsor.handle" target="_blank" rel="sponsored" [title]="sponsor.handle">
-            <img class="image" [src]="'/api/v1/donations/images/' + sponsor.handle" />
-          </a>
-        </ng-template>
+      <ng-container *ngIf="ogs$ | async as ogs; else loadingSponsors">
+        <a *ngFor="let ogSponsor of ogs" [href]="'https://twitter.com/' + ogSponsor.handle" target="_blank" rel="sponsored" [title]="ogSponsor.handle">
+          <img class="image" [src]="'/api/v1/donations/images/' + ogSponsor.handle" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
+        </a>
      </ng-container>
    </div>
  </div>
@ -340,7 +373,7 @@
      <div class="wrapper">
        <ng-template ngFor let-translator [ngForOf]="translators">
          <a [href]="'https://twitter.com/' + translator.value" target="_blank" [title]="translator.key">
-            <img class="image" [src]="'/api/v1/translators/images/' + translator.value" />
+            <img class="image" [src]="'/api/v1/translators/images/' + translator.value" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
          </a>
        </ng-template>
      </div>
@ -354,7 +387,7 @@
      <div class="wrapper">
        <ng-template ngFor let-contributor [ngForOf]="contributors.regular">
          <a [href]="'https://github.com/' + contributor.name" target="_blank" [title]="contributor.name">
-            <img class="image" [src]="'/api/v1/contributors/images/' + contributor.id" />
+            <img class="image" [src]="'/api/v1/contributors/images/' + contributor.id" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
            <span>{{ contributor.name }}</span>
          </a>
        </ng-template>
@ -366,7 +399,7 @@
      <div class="wrapper">
        <ng-template ngFor let-contributor [ngForOf]="contributors.core">
          <a [href]="'https://github.com/' + contributor.name" target="_blank" [title]="contributor.name">
-            <img class="image" [src]="'/api/v1/contributors/images/' + contributor.id" />
+            <img class="image" [src]="'/api/v1/contributors/images/' + contributor.id" onError="this.src = '/resources/profile/unknown.svg'; this.className = 'image unknown'"/>
            <span>{{ contributor.name }}</span>
          </a>
        </ng-template>
--- a/frontend/src/app/components/about/about.component.scss
+++ b/frontend/src/app/components/about/about.component.scss
@ -10,6 +10,9 @@
    margin: 25px;
    line-height: 32px;
  }
+  .unknown {
+    border: 1px solid #b4b4b4;
+  }

  .image.not-rounded {
    border-radius: 0;
--- a/frontend/src/app/components/about/about.component.ts
+++ b/frontend/src/app/components/about/about.component.ts
@ -6,7 +6,7 @@ import { Observable } from 'rxjs';
 import { ApiService } from '../../services/api.service';
 import { IBackendInfo } from '../../interfaces/websocket.interface';
 import { Router, ActivatedRoute } from '@angular/router';
-import { map, tap } from 'rxjs/operators';
+import { map, share, tap } from 'rxjs/operators';
 import { ITranslators } from '../../interfaces/node-api.interface';
 import { DOCUMENT } from '@angular/common';

@ -19,14 +19,16 @@ import { DOCUMENT } from '@angular/common';
 export class AboutComponent implements OnInit {
  @ViewChild('promoVideo') promoVideo: ElementRef;
  backendInfo$: Observable<IBackendInfo>;
-  sponsors$: Observable<any>;
-  translators$: Observable<ITranslators>;
-  allContributors$: Observable<any>;
  frontendGitCommitHash = this.stateService.env.GIT_COMMIT_HASH;
  packetJsonVersion = this.stateService.env.PACKAGE_JSON_VERSION;
  officialMempoolSpace = this.stateService.env.OFFICIAL_MEMPOOL_SPACE;
  showNavigateToSponsor = false;

+  profiles$: Observable<any>;
+  translators$: Observable<ITranslators>;
+  allContributors$: Observable<any>;
+  ogs$: Observable<any>;
+
  constructor(
    private websocketService: WebsocketService,
    private seoService: SeoService,
@ -43,10 +45,13 @@ export class AboutComponent implements OnInit {
    this.seoService.setTitle($localize`:@@004b222ff9ef9dd4771b777950ca1d0e4cd4348a:About`);
    this.websocketService.want(['blocks']);

-    this.sponsors$ = this.apiService.getDonation$()
-      .pipe(
-        tap(() => this.goToAnchor())
-      );
+    this.profiles$ = this.apiService.getAboutPageProfiles$().pipe(
+      tap(() => {
+        this.goToAnchor()
+      }),
+      share(),
+    )
+
    this.translators$ = this.apiService.getTranslators$()
      .pipe(
        map((translators) => {
@ -59,6 +64,9 @@ export class AboutComponent implements OnInit {
        }),
        tap(() => this.goToAnchor())
      );
+
+    this.ogs$ = this.apiService.getOgs$();
+
    this.allContributors$ = this.apiService.getContributor$().pipe(
      map((contributors) => {
        return {
--- 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
@ -147,7 +147,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
    }
  }

-  update(add: TransactionStripped[], remove: string[], change: { txid: string, rate: number | undefined }[], direction: string = 'left', resetLayout: boolean = false): void {
+  update(add: TransactionStripped[], remove: string[], change: { txid: string, rate: number | undefined, acc: boolean | undefined }[], direction: string = 'left', resetLayout: boolean = false): void {
    if (this.scene) {
      this.scene.update(add, remove, change, direction, resetLayout);
      this.start();
--- a/frontend/src/app/components/block-overview-graph/block-scene.ts
+++ b/frontend/src/app/components/block-overview-graph/block-scene.ts
@ -150,7 +150,7 @@ export default class BlockScene {
    this.updateAll(startTime, 200, direction);
  }

-  update(add: TransactionStripped[], remove: string[], change: { txid: string, rate: number | undefined }[], direction: string = 'left', resetLayout: boolean = false): void {
+  update(add: TransactionStripped[], remove: string[], change: { txid: string, rate: number | undefined, acc: boolean | undefined }[], direction: string = 'left', resetLayout: boolean = false): void {
    const startTime = performance.now();
    const removed = this.removeBatch(remove, startTime, direction);

@ -175,6 +175,7 @@ export default class BlockScene {
      // update effective rates
      change.forEach(tx => {
        if (this.txs[tx.txid]) {
+          this.txs[tx.txid].acc = tx.acc;
          this.txs[tx.txid].feerate = tx.rate || (this.txs[tx.txid].fee / this.txs[tx.txid].vsize);
          this.txs[tx.txid].rate = tx.rate;
          this.txs[tx.txid].dirty = true;
--- a/frontend/src/app/components/block-overview-graph/tx-view.ts
+++ b/frontend/src/app/components/block-overview-graph/tx-view.ts
@ -17,6 +17,7 @@ const auditColors = {
  missing: darken(desaturate(hexToColor('f344df'), 0.3), 0.7),
  added: hexToColor('0099ff'),
  selected: darken(desaturate(hexToColor('0099ff'), 0.3), 0.7),
+  accelerated: hexToColor('8F5FF6'),
 };

 // convert from this class's update format to TxSprite's update format
@ -37,8 +38,9 @@ export default class TxView implements TransactionStripped {
  vsize: number;
  value: number;
  feerate: number;
+  acc?: boolean;
  rate?: number;
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf';
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf' | 'accelerated';
  context?: 'projected' | 'actual';
  scene?: BlockScene;

@ -63,6 +65,7 @@ export default class TxView implements TransactionStripped {
    this.vsize = tx.vsize;
    this.value = tx.value;
    this.feerate = tx.rate || (tx.fee / tx.vsize); // sort by effective fee rate where available
+    this.acc = tx.acc;
    this.rate = tx.rate;
    this.status = tx.status;
    this.initialised = false;
@ -199,6 +202,11 @@ export default class TxView implements TransactionStripped {
    const feeLevelColor = feeColors[feeLevelIndex] || feeColors[mempoolFeeColors.length - 1];
    // Normal mode
    if (!this.scene?.highlightingEnabled) {
+      if (this.acc) {
+        return auditColors.accelerated;
+      } else {
+        return feeLevelColor;
+      }
      return feeLevelColor;
    }
    // Block audit
@ -216,6 +224,8 @@ export default class TxView implements TransactionStripped {
        return auditColors.added;
      case 'selected':
        return marginalFeeColors[feeLevelIndex] || marginalFeeColors[mempoolFeeColors.length - 1];
+      case 'accelerated':
+        return auditColors.accelerated;
      case 'found':
        if (this.context === 'projected') {
          return auditFeeColors[feeLevelIndex] || auditFeeColors[mempoolFeeColors.length - 1];
@ -223,7 +233,11 @@ export default class TxView implements TransactionStripped {
          return feeLevelColor;
        }
      default:
-        return feeLevelColor;
+        if (this.acc) {
+          return auditColors.accelerated;
+        } else {
+          return feeLevelColor;
+        }
    }
  }
 }
--- 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
@ -29,7 +29,8 @@
        </td>
      </tr>
      <tr *ngIf="effectiveRate && effectiveRate !== feeRate">
-        <td class="td-width" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</td>
+        <td *ngIf="!this.acceleration" class="td-width" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</td>
+        <td *ngIf="this.acceleration" class="td-width" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Accelerated fee rate</td>
        <td>
          <app-fee-rate [fee]="effectiveRate"></app-fee-rate>
        </td>
@ -54,6 +55,7 @@
          <td *ngSwitchCase="'added'"><span class="badge badge-warning" i18n="transaction.audit.added">Added</span></td>
          <td *ngSwitchCase="'selected'"><span class="badge badge-warning" i18n="transaction.audit.marginal">Marginal fee rate</span></td>
          <td *ngSwitchCase="'rbf'"><span class="badge badge-warning" i18n="transaction.audit.conflicting">Conflicting</span></td>
+          <td *ngSwitchCase="'accelerated'"><span class="badge badge-success" i18n="transaction.audit.accelerated">Accelerated</span></td>
        </ng-container>
      </tr>
    </tbody>
--- a/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.ts
+++ b/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.ts
@ -21,6 +21,7 @@ export class BlockOverviewTooltipComponent implements OnChanges {
  vsize = 1;
  feeRate = 0;
  effectiveRate;
+  acceleration;

  tooltipPosition: Position = { x: 0, y: 0 };

@ -53,6 +54,7 @@ export class BlockOverviewTooltipComponent implements OnChanges {
      this.vsize = tx.vsize || 1;
      this.feeRate = this.fee / this.vsize;
      this.effectiveRate = tx.rate;
+      this.acceleration = tx.acc;
    }
  }
 }
--- a/frontend/src/app/components/block/block.component.ts
+++ b/frontend/src/app/components/block/block.component.ts
@ -340,12 +340,16 @@ export class BlockComponent implements OnInit, OnDestroy {
        const isFresh = {};
        const isSigop = {};
        const isRbf = {};
+        const isAccelerated = {};
        this.numMissing = 0;
        this.numUnexpected = 0;

        if (blockAudit?.template) {
          for (const tx of blockAudit.template) {
            inTemplate[tx.txid] = true;
+            if (tx.acc) {
+              isAccelerated[tx.txid] = true;
+            }
          }
          for (const tx of transactions) {
            inBlock[tx.txid] = true;
@ -365,6 +369,9 @@ export class BlockComponent implements OnInit, OnDestroy {
          for (const txid of blockAudit.fullrbfTxs || []) {
            isRbf[txid] = true;
          }
+          for (const txid of blockAudit.acceleratedTxs || []) {
+            isAccelerated[txid] = true;
+          }
          // set transaction statuses
          for (const tx of blockAudit.template) {
            tx.context = 'projected';
@ -389,6 +396,9 @@ export class BlockComponent implements OnInit, OnDestroy {
              isMissing[tx.txid] = true;
              this.numMissing++;
            }
+            if (isAccelerated[tx.txid]) {
+              tx.status = 'accelerated';
+            }
          }
          for (const [index, tx] of transactions.entries()) {
            tx.context = 'actual';
@ -405,6 +415,9 @@ export class BlockComponent implements OnInit, OnDestroy {
              isSelected[tx.txid] = true;
              this.numUnexpected++;
            }
+            if (isAccelerated[tx.txid]) {
+              tx.status = 'accelerated';
+            }
          }
          for (const tx of transactions) {
            inBlock[tx.txid] = true;
--- a/frontend/src/app/components/fee-distribution-graph/fee-distribution-graph.component.ts
+++ b/frontend/src/app/components/fee-distribution-graph/fee-distribution-graph.component.ts
@ -64,7 +64,7 @@ export class FeeDistributionGraphComponent implements OnInit, OnChanges, OnDestr
      return;
    }
    const samples = [];
-    const txs = this.transactions.map(tx => { return { vsize: tx.vsize, rate: tx.rate || (tx.fee / tx.vsize) }; }).sort((a, b) => { return b.rate - a.rate; });
+    const txs = this.transactions.filter(tx => !tx.acc).map(tx => { return { vsize: tx.vsize, rate: tx.rate || (tx.fee / tx.vsize) }; }).sort((a, b) => { return b.rate - a.rate; });
    const maxBlockVSize = this.stateService.env.BLOCK_WEIGHT_UNITS / 4;
    const sampleInterval = maxBlockVSize / this.numSamples;
    let cumVSize = 0;
--- a/frontend/src/app/components/master-page/master-page.component.html
+++ b/frontend/src/app/components/master-page/master-page.component.html
@ -1,5 +1,5 @@
 <ng-container *ngIf="{ val: network$ | async } as network">
-<header>
+<header *ngIf="headerVisible">
  <nav class="navbar navbar-expand-md navbar-dark bg-dark">
  <a class="navbar-brand" [ngClass]="{'dual-logos': subdomain}" [routerLink]="['/' | relativeUrl]" (click)="brandClick($event)">
  <ng-template [ngIf]="subdomain">
--- a/frontend/src/app/components/master-page/master-page.component.ts
+++ b/frontend/src/app/components/master-page/master-page.component.ts
@ -1,4 +1,4 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, Input } from '@angular/core';
 import { Env, StateService } from '../../services/state.service';
 import { Observable, merge, of } from 'rxjs';
 import { LanguageService } from '../../services/language.service';
@ -11,6 +11,9 @@ import { NavigationService } from '../../services/navigation.service';
  styleUrls: ['./master-page.component.scss'],
 })
 export class MasterPageComponent implements OnInit {
+  @Input() headerVisible = true;
+  @Input() footerVisibleOverride: boolean | null = null;
+
  env: Env;
  network$: Observable<string>;
  connectionState$: Observable<number>;
@ -38,10 +41,14 @@ export class MasterPageComponent implements OnInit {
    this.subdomain = this.enterpriseService.getSubdomain();
    this.navigationService.subnetPaths.subscribe((paths) => {
      this.networkPaths = paths;
-      if (paths.mainnet.indexOf('docs') > -1) {
-        this.footerVisible = false;
+      if (this.footerVisibleOverride === null) {
+        if (paths.mainnet.indexOf('docs') > -1) {
+          this.footerVisible = false;
+        } else {
+          this.footerVisible = true;
+        }
      } else {
-        this.footerVisible = true;
+        this.footerVisible = this.footerVisibleOverride;
      }
    });
  }
--- 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
@ -94,7 +94,6 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang

  updateBlock(delta: MempoolBlockDelta): void {
    const blockMined = (this.stateService.latestBlockHeight > this.lastBlockHeight);
-
    if (this.blockIndex !== this.index) {
      const direction = (this.blockIndex == null || this.index < this.blockIndex) ? this.poolDirection : this.chainDirection;
      this.blockGraph.replace(delta.added, direction);
--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
@ -49,7 +49,7 @@
        </div>
      </ng-template>
    </div>
-    <div *ngIf="arrowVisible" id="arrow-up" [ngStyle]="{'right': rightPosition + 75 + 'px', transition: transition }"></div>
+    <div *ngIf="arrowVisible" id="arrow-up" [ngStyle]="{'right': rightPosition + 75 + 'px', transition: transition }" [class.blink]="txPosition?.accelerated"></div>
  </div>
 </ng-container>

--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.scss
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.scss
@ -169,4 +169,34 @@
  transform: translate(calc(-0.2 * var(--block-size)), calc(1.1 * var(--block-size)));
  border-radius: 2px;
  z-index: -1;
+}
+
+.blink{
+  width:400px;
+  height:400px;
+  border-bottom: 35px solid #FFF;
+  animation: blink 0.2s infinite;
+}
+@keyframes blink{
+  0% {
+    border-bottom: 35px solid green;
+  }
+  50% {
+    border-bottom: 35px solid yellow;
+  }
+  100% {
+    border-bottom: 35px solid orange;
+  }
+}
+
+@-webkit-keyframes blink{
+  0% {
+    border-bottom: 35px solid green;
+  }
+  50% {
+    border-bottom: 35px solid yellow;
+  }
+  100% {
+    border-bottom: 35px solid orange;
+  }
 }
--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
@ -26,6 +26,7 @@ import { animate, style, transition, trigger } from '@angular/animations';
 export class MempoolBlocksComponent implements OnInit, OnChanges, OnDestroy {
  @Input() minimal: boolean = false;
  @Input() blockWidth: number = 125;
+  @Input() containerWidth: number = null;
  @Input() count: number = null;
  @Input() spotlight: number = 0;
  @Input() getHref?: (index) => string = (index) => `/mempool-block/${index}`;
--- a/frontend/src/app/components/transaction/transaction.component.html
+++ b/frontend/src/app/components/transaction/transaction.component.html
@ -99,14 +99,20 @@
                    </ng-template>
                    <ng-template #estimationTmpl>
                      <ng-template [ngIf]="this.mempoolPosition.block >= 7" [ngIfElse]="belowBlockLimit">
-                        <span i18n="transaction.eta.in-several-hours|Transaction ETA in several hours or more">In several hours (or more)</span>
+                        <span class="eta d-flex">
+                          <span i18n="transaction.eta.in-several-hours|Transaction ETA in several hours or more">In several hours (or more)</span>
+                          <span class="ml-2"></span><a *ngIf="stateService.env.OFFICIAL_MEMPOOL_SPACE && stateService.env.ACCELERATOR" [href]="'/services/accelerator/accelerate?txid=' + tx.txid" class="btn badge badge-primary accelerate ml-auto" i18n="transaction.accelerate|Accelerate button label">Accelerate</a>
+                        </span>
                      </ng-template>
                      <ng-template #belowBlockLimit>
                        <ng-template [ngIf]="network === 'liquid' || network === 'liquidtestnet'" [ngIfElse]="timeEstimateDefault">
                          <app-time kind="until" [time]="(60 * 1000 * this.mempoolPosition.block) + now" [fastRender]="false" [fixedRender]="true"></app-time>
                        </ng-template>
                        <ng-template #timeEstimateDefault>
-                          <app-time kind="until" *ngIf="(da$ | async) as da;" [time]="da.timeAvg * (this.mempoolPosition.block + 1) + now + da.timeOffset" [fastRender]="false" [fixedRender]="true"></app-time>
+                          <span class="d-flex">
+                            <app-time kind="until" *ngIf="(da$ | async) as da;" [time]="da.timeAvg * (this.mempoolPosition.block + 1) + now + da.timeOffset" [fastRender]="false" [fixedRender]="true"></app-time>
+                            <span class="ml-2"></span><a *ngIf="stateService.env.OFFICIAL_MEMPOOL_SPACE && stateService.env.ACCELERATOR" [href]="'/services/accelerator/accelerate?txid=' + tx.txid" class="btn badge badge-primary accelerate ml-auto" i18n="transaction.accelerate|Accelerate button label">Accelerate</a>
+                          </span>
                        </ng-template>
                      </ng-template>
                    </ng-template>
@ -488,7 +494,8 @@
        </td>
      </tr>
      <tr *ngIf="cpfpInfo && hasEffectiveFeeRate">
-        <td i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</td>
+        <td *ngIf="tx.acceleration" i18n="transaction.accelerated-fee-rate|Accelerated transaction fee rate">Accelerated fee rate</td>
+        <td *ngIf="!tx.acceleration" i18n="transaction.effective-fee-rate|Effective transaction fee rate">Effective fee rate</td>
        <td>
          <div class="effective-fee-container">
            <app-fee-rate [fee]="tx.effectiveFeePerVsize"></app-fee-rate>
--- a/frontend/src/app/components/transaction/transaction.component.scss
+++ b/frontend/src/app/components/transaction/transaction.component.scss
@ -216,4 +216,23 @@
  .alert-link {
    display: block;
  }
+}
+
+.eta {
+  display: flex;
+  justify-content: end;
+  flex-wrap: wrap;
+  align-content: center;
+  @media (min-width: 850px) {
+    justify-content: space-between;
+  }
+}
+
+.accelerate {
+  align-self: auto;
+  margin-top: 3px;
+  @media (min-width: 850px) {
+    justify-self: start;
+    margin-left: 0px;
+  }
 }
--- a/frontend/src/app/components/transaction/transaction.component.ts
+++ b/frontend/src/app/components/transaction/transaction.component.ts
@ -97,7 +97,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
    private router: Router,
    private relativeUrlPipe: RelativeUrlPipe,
    private electrsApiService: ElectrsApiService,
-    private stateService: StateService,
+    public stateService: StateService,
    private cacheService: CacheService,
    private websocketService: WebsocketService,
    private audioService: AudioService,
@ -183,6 +183,9 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
        } else {
          this.tx.effectiveFeePerVsize = cpfpInfo.effectiveFeePerVsize;
        }
+        if (cpfpInfo.acceleration) {
+          this.tx.acceleration = cpfpInfo.acceleration;
+        }

        this.cpfpInfo = cpfpInfo;
        this.hasEffectiveFeeRate = hasRelatives || (this.tx.effectiveFeePerVsize && (Math.abs(this.tx.effectiveFeePerVsize - this.tx.feePerVsize) > 0.01));
--- a/frontend/src/app/interfaces/electrs.interface.ts
+++ b/frontend/src/app/interfaces/electrs.interface.ts
@ -19,6 +19,7 @@ export interface Transaction {
  ancestors?: Ancestor[];
  bestDescendant?: BestDescendant | null;
  cpfpChecked?: boolean;
+  acceleration?: number;
  deleteAfter?: number;
  _unblinded?: any;
  _deduced?: boolean;
--- a/frontend/src/app/interfaces/node-api.interface.ts
+++ b/frontend/src/app/interfaces/node-api.interface.ts
@ -27,6 +27,7 @@ export interface CpfpInfo {
  effectiveFeePerVsize?: number;
  sigops?: number;
  adjustedVsize?: number;
+  acceleration?: number;
 }

 export interface RbfInfo {
@ -111,6 +112,7 @@ export interface PoolInfo {
  addresses: string; // JSON array
  emptyBlocks: number;
  slug: string;
+  poolUniqueId: number;
 }
 export interface PoolStat {
  pool: PoolInfo;
@ -159,6 +161,7 @@ export interface BlockAudit extends BlockExtended {
  freshTxs: string[],
  sigopTxs: string[],
  fullrbfTxs: string[],
+  acceleratedTxs: string[],
  matchRate: number,
  expectedFees: number,
  expectedWeight: number,
@ -175,7 +178,8 @@ export interface TransactionStripped {
  vsize: number;
  value: number;
  rate?: number; // effective fee rate
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf';
+  acc?: boolean;
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf' | 'accelerated';
  context?: 'projected' | 'actual';
 }

@ -187,6 +191,7 @@ export interface RbfTransaction extends TransactionStripped {
 export interface MempoolPosition {
  block: number,
  vsize: number,
+  accelerated?: boolean
 }

 export interface RewardStats {
--- a/frontend/src/app/interfaces/websocket.interface.ts
+++ b/frontend/src/app/interfaces/websocket.interface.ts
@ -70,7 +70,7 @@ export interface MempoolBlockWithTransactions extends MempoolBlock {
 export interface MempoolBlockDelta {
  added: TransactionStripped[],
  removed: string[],
-  changed?: { txid: string, rate: number | undefined }[];
+  changed?: { txid: string, rate: number | undefined, acc: boolean | undefined }[];
 }

 export interface MempoolInfo {
@ -88,8 +88,9 @@ export interface TransactionStripped {
  fee: number;
  vsize: number;
  value: number;
+  acc?: boolean; // is accelerated?
  rate?: number; // effective fee rate
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf';
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'censored' | 'selected' | 'rbf' | 'accelerated';
  context?: 'projected' | 'actual';
 }

--- a/frontend/src/app/lightning/lightning.module.ts
+++ b/frontend/src/app/lightning/lightning.module.ts
@ -34,6 +34,7 @@ import { OldestNodes } from '../lightning/nodes-ranking/oldest-nodes/oldest-node
 import { NodesRankingsDashboard } from '../lightning/nodes-rankings-dashboard/nodes-rankings-dashboard.component';
 import { NodeChannels } from '../lightning/nodes-channels/node-channels.component';
 import { GroupComponent } from './group/group.component';
+import { NodeOwnerComponent } from './node-owner/node-owner.component';

@NgModule({
  declarations: [
@ -66,6 +67,7 @@ import { GroupComponent } from './group/group.component';
    NodesRankingsDashboard,
    NodeChannels,
    GroupComponent,
+    NodeOwnerComponent,
  ],
  imports: [
    CommonModule,
@ -103,6 +105,7 @@ import { GroupComponent } from './group/group.component';
    OldestNodes,
    NodesRankingsDashboard,
    NodeChannels,
+    NodeOwnerComponent,
  ],
  providers: [
    LightningApiService,
--- a/frontend/src/app/lightning/node-owner/node-owner.component.html
+++ b/frontend/src/app/lightning/node-owner/node-owner.component.html
@ -0,0 +1,17 @@
+<div *ngIf="stateService.env.OFFICIAL_MEMPOOL_SPACE === true">
+
+  <div *ngIf="{ value: (nodeOwner$ | async) } as nodeOwner">
+
+    <div *ngIf="nodeOwner.value && nodeOwner.value.sns_id">
+      <a target="_blank" [href]="'https://twitter.com/' + nodeOwner.value.username">
+        <img class="profile-photo" [src]="'data:' + nodeOwner.value.image_mime + ';base64,' + nodeOwner.value.image">
+      </a>
+    </div>
+
+    <div *ngIf="nodeOwner.value === false">
+      <a [href]="'/login/lnnode?type=signup&pubkey=' + publicKey + '&alias=' + alias" class="btn btn-primary btn-sm">Claim</a>
+    <div>
+
+  </div>
+
+</div>
--- a/frontend/src/app/lightning/node-owner/node-owner.component.scss
+++ b/frontend/src/app/lightning/node-owner/node-owner.component.scss
@ -0,0 +1,4 @@
+.profile-photo {
+  width: 31px;
+  height: 31px;
+}
--- a/frontend/src/app/lightning/node-owner/node-owner.component.ts
+++ b/frontend/src/app/lightning/node-owner/node-owner.component.ts
@ -0,0 +1,20 @@
+import { ChangeDetectionStrategy, Component, Input } from '@angular/core';
+import { Observable } from 'rxjs';
+import { StateService } from '../../services/state.service';
+
+@Component({
+  selector: 'app-node-owner',
+  templateUrl: './node-owner.component.html',
+  styleUrls: ['./node-owner.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodeOwnerComponent{
+  @Input() publicKey: string = '';
+  @Input() alias: string = '';
+  @Input() nodeOwner$: Observable<any>;
+
+  constructor(
+    public stateService: StateService
+  ) {
+  }
+}
--- a/frontend/src/app/lightning/node/node.component.html
+++ b/frontend/src/app/lightning/node/node.component.html
@ -3,13 +3,17 @@
  <ng-container *ngIf="!error">
    <h5 class="mb-0" style="color: #ffffff66" i18n="lightning.node">Lightning node</h5>
    <div class="title-container mb-2">
-      <h1 class="mb-0 text-truncate">{{ node.alias }}</h1>
-      <span class="tx-link">
+      <div class="d-flex justify-content-between align-items-center">
+        <h1 class="mb-0 text-truncate">{{ node.alias }}</h1>
+        <!-- <app-node-owner [nodeOwner$]="nodeOwner$" [publicKey]="node.public_key" [alias]="node.alias" class="claim-btn"></app-node-owner> -->
+      </div>
+      <span class="tx-link justify-content-between align-items-center">
        <span class="node-id">
          <app-truncate [text]="node.public_key" [lastChars]="8" [link]="['/lightning/node' | relativeUrl, node.public_key]">
            <app-clipboard [text]="node.public_key"></app-clipboard>
          </app-truncate>
        </span>
+        <!-- <app-node-owner [nodeOwner$]="nodeOwner$" [publicKey]="node.public_key" [alias]="node.alias" class="claim-btn-mobile"></app-node-owner> -->
      </span>
    </div>
  </ng-container>
--- a/frontend/src/app/lightning/node/node.component.scss
+++ b/frontend/src/app/lightning/node/node.component.scss
@ -111,3 +111,17 @@ app-fiat {
  margin: 0 0.25em;
  color: slategrey;
 }
+
+.claim-btn {
+  max-height: 32px;
+  @media (min-width: 850px) {
+    display: none;
+  }
+}
+
+.claim-btn-mobile {
+  max-height: 32px;
+  @media (max-width: 850px) {
+    display: none;
+  }
+}
--- a/frontend/src/app/lightning/node/node.component.ts
+++ b/frontend/src/app/lightning/node/node.component.ts
@ -1,7 +1,7 @@
-import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { ChangeDetectionStrategy, Component, OnInit, ChangeDetectorRef } from '@angular/core';
 import { ActivatedRoute, ParamMap } from '@angular/router';
-import { Observable } from 'rxjs';
-import { catchError, map, switchMap, tap } from 'rxjs/operators';
+import { Observable, of, EMPTY } from 'rxjs';
+import { catchError, map, switchMap, tap, share } from 'rxjs/operators';
 import { SeoService } from '../../services/seo.service';
 import { ApiService } from '../../services/api.service';
 import { LightningApiService } from '../lightning-api.service';
@ -38,6 +38,7 @@ export class NodeComponent implements OnInit {
  tlvRecords: CustomRecord[];
  avgChannelDistance$: Observable<number | null>;
  showFeatures = false;
+  nodeOwner$: Observable<any>;
  kmToMiles = kmToMiles;

  constructor(
@ -45,6 +46,7 @@ export class NodeComponent implements OnInit {
    private lightningApiService: LightningApiService,
    private activatedRoute: ActivatedRoute,
    private seoService: SeoService,
+    private cd: ChangeDetectorRef,
  ) { }

  ngOnInit(): void {
@ -147,6 +149,24 @@ export class NodeComponent implements OnInit {
        return null;
      })
    ) as Observable<number | null>;
+
+    this.nodeOwner$ = this.activatedRoute.paramMap
+      .pipe(
+        switchMap((params: ParamMap) => {
+          return this.apiService.getNodeOwner$(params.get('public_key')).pipe(
+            switchMap((response) =>  {
+              if (response.status === 204) {
+                return of(false);
+              }
+              return of(response.body);
+            }),
+            catchError(() => {
+              return of(false);
+            })
+          )
+        }),
+        share(),
+      );
  }

  toggleShowDetails(): void {
--- a/frontend/src/app/services/api.service.ts
+++ b/frontend/src/app/services/api.service.ts
@ -8,6 +8,8 @@ import { WebsocketResponse } from '../interfaces/websocket.interface';
 import { Outspend, Transaction } from '../interfaces/electrs.interface';
 import { Conversion } from './price.service';

+const SERVICES_API_PREFIX = `/api/v1/services`;
+
@Injectable({
  providedIn: 'root'
 })
@ -92,15 +94,11 @@ export class ApiService {
    return this.httpClient.get<Outspend[][]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/outspends', { params });
  }

-  requestDonation$(amount: number, orderId: string): Observable<any> {
-    const params = {
-      amount: amount,
-      orderId: orderId,
-    };
-    return this.httpClient.post<any>(this.apiBaseUrl + '/api/v1/donations', params);
+  getAboutPageProfiles$(): Observable<any[]> {
+    return this.httpClient.get<any[]>(this.apiBaseUrl + '/api/v1/about-page');
  }

-  getDonation$(): Observable<any[]> {
+  getOgs$(): Observable<any> {
    return this.httpClient.get<any[]>(this.apiBaseUrl + '/api/v1/donations');
  }

@ -112,10 +110,6 @@ export class ApiService {
    return this.httpClient.get<any[]>(this.apiBaseUrl + '/api/v1/contributors');
  }

-  checkDonation$(orderId: string): Observable<any[]> {
-    return this.httpClient.get<any[]>(this.apiBaseUrl + '/api/v1/donations/check?order_id=' + orderId);
-  }
-
  getInitData$(): Observable<WebsocketResponse> {
    return this.httpClient.get<WebsocketResponse>(this.apiBaseUrl + this.apiBasePath + '/api/v1/init-data');
  }
@ -323,4 +317,13 @@ export class ApiService {
        (timestamp ? `?timestamp=${timestamp}` : '')
    );
  }
+
+  /**
+   * Services
+   */
+  getNodeOwner$(publicKey: string) {
+    let params = new HttpParams()
+      .set('node_public_key', publicKey);
+    return this.httpClient.get<any>(`${SERVICES_API_PREFIX}/lightning/claim/current`, { params, observe: 'response' });
+  }
 }
--- a/frontend/src/app/services/state.service.ts
+++ b/frontend/src/app/services/state.service.ts
@ -47,6 +47,7 @@ export interface Env {
  TESTNET_BLOCK_AUDIT_START_HEIGHT: number;
  SIGNET_BLOCK_AUDIT_START_HEIGHT: number;
  HISTORICAL_PRICE: boolean;
+  ACCELERATOR: boolean;
 }

 const defaultEnv: Env = {
@ -77,6 +78,7 @@ const defaultEnv: Env = {
  'TESTNET_BLOCK_AUDIT_START_HEIGHT': 0,
  'SIGNET_BLOCK_AUDIT_START_HEIGHT': 0,
  'HISTORICAL_PRICE': true,
+  'ACCELERATOR': false,
 };

@Injectable({
--- a/frontend/src/app/shared/components/global-footer/global-footer.component.html
+++ b/frontend/src/app/shared/components/global-footer/global-footer.component.html
@ -1,7 +1,7 @@
 <footer>
    <div class="container-fluid">
    <div class="row main">
-      <div class="offset-lg-1 col-lg-4 col align-self-center branding">
+      <div class="offset-lg-1 col-lg-4 col align-self-center branding mt-2">
        <div class="main-logo">
          <app-svg-images *ngIf="officialMempoolSpace" name="officialMempoolSpace" viewBox="0 0 500 126"></app-svg-images>
          <app-svg-images *ngIf="!officialMempoolSpace" name="mempoolSpace" viewBox="0 0 500 126"></app-svg-images>
@ -16,10 +16,12 @@
        <div class="selector">
          <app-rate-unit-selector></app-rate-unit-selector>
        </div>
-        <ng-template #temporaryHidden>
-          <a *ngIf="officialMempoolSpace" class="cta btn btn-purple sponsor" [routerLink]="['/signup' | relativeUrl]">Support the Project</a>
-          <p *ngIf="officialMempoolSpace && env.BASE_MODULE === 'mempool'" class="cta-secondary"><a [routerLink]="['/signin' | relativeUrl]" i18n="shared.broadcast-transaction|Broadcast Transaction">Sign In</a></p>
-        </ng-template>
+        <div *ngIf="officialMempoolSpace && stateService.env.ACCELERATOR" class="cta">
+          <a class="btn btn-purple sponsor" [routerLink]="['/login' | relativeUrl]">
+            <span *ngIf="loggedIn" i18n="shared.my-account">My Account</span>
+            <span *ngIf="!loggedIn" i18n="shared.sign-in">Sign In / Sign Up</span>
+          </a>
+        </div>
      </div>
      <div class="col-lg-6 col-md-10 offset-md-1 links outer">
        <div class="row">
--- a/frontend/src/app/shared/components/global-footer/global-footer.component.scss
+++ b/frontend/src/app/shared/components/global-footer/global-footer.component.scss
@ -22,7 +22,7 @@ footer .row.main .branding {
 }

 footer .row.main .branding > p {
-  margin-bottom: 45px;
+  margin-bottom: 25px;
 }

 footer .row.main .branding .btn {
@ -35,11 +35,7 @@ footer .row.main .branding button.account {
 }

 footer .row.main .branding .cta {
-  margin: 20px auto 25px auto;
-}
-
-footer .row.main .branding .cta-secondary {
-
+  margin: 25px auto 25px auto;
 }

 footer .row.main .links.outer {
--- a/frontend/src/app/shared/components/global-footer/global-footer.component.ts
+++ b/frontend/src/app/shared/components/global-footer/global-footer.component.ts
@ -1,10 +1,13 @@
-import { ChangeDetectionStrategy, Component, OnInit, Inject, LOCALE_ID } from '@angular/core';
-import { Observable, merge, of, Subject } from 'rxjs';
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, OnInit, Inject, LOCALE_ID } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { Observable, merge, of, Subject, Subscription } from 'rxjs';
 import { tap, takeUntil } from 'rxjs/operators';
 import { Env, StateService } from '../../../services/state.service';
 import { IBackendInfo } from '../../../interfaces/websocket.interface';
 import { LanguageService } from '../../../services/language.service';
 import { NavigationService } from '../../../services/navigation.service';
+import { StorageService } from '../../../services/storage.service';
+import { WebsocketService } from '../../../services/websocket.service';

@Component({
  selector: 'app-global-footer',
@ -23,12 +26,19 @@ export class GlobalFooterComponent implements OnInit {
  network$: Observable<string>;
  networkPaths: { [network: string]: string };
  currentNetwork = '';
+  loggedIn = false;
+  username = null;
+  urlSubscription: Subscription;

  constructor(
    public stateService: StateService,
    private languageService: LanguageService,
    private navigationService: NavigationService,
    @Inject(LOCALE_ID) public locale: string,
+    private storageService: StorageService,
+    private route: ActivatedRoute,
+    private cd: ChangeDetectorRef,
+    private websocketService: WebsocketService
  ) {}

  ngOnInit(): void {
@ -46,11 +56,23 @@ export class GlobalFooterComponent implements OnInit {
    this.network$.pipe(takeUntil(this.destroy$)).subscribe((network) => {
      this.currentNetwork = network;
    });
+
+    this.urlSubscription = this.route.url.subscribe((url) => {
+      this.loggedIn = JSON.parse(this.storageService.getValue('auth')) !== null;
+      const auth = JSON.parse(this.storageService.getValue('auth'));
+      if (auth?.user?.username) {
+        this.username = auth.user.username;
+      } else {
+        this.username = null;
+      }
+      this.cd.markForCheck();
+    })
  }

  ngOnDestroy(): void {
    this.destroy$.next(true);
    this.destroy$.complete();
+    this.urlSubscription.unsubscribe();
  }

  networkLink(network) {
--- a/frontend/src/app/shared/shared.module.ts
+++ b/frontend/src/app/shared/shared.module.ts
@ -219,6 +219,7 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
    AmountShortenerPipe,
  ],
  exports: [
+    MasterPageComponent,
    RouterModule,
    ReactiveFormsModule,
    NgbNavModule,
--- a/frontend/src/resources/profile/unknown.svg
+++ b/frontend/src/resources/profile/unknown.svg
@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" data-v-4fa90e7f=""><path d="M14.33 7.17C13.588 7.058 12.807 7 12 7c-4.97 0-9 2.239-9 5 0 1.44 1.096 2.738 2.85 3.65l2.362-2.362a4 4 0 015.076-5.076l1.043-1.043zM11.23 15.926a4 4 0 004.695-4.695l2.648-2.647C20.078 9.478 21 10.68 21 12c0 2.761-4.03 5-9 5-.598 0-1.183-.032-1.749-.094l.98-.98zM17.793 5.207a1 1 0 111.414 1.414L6.48 19.35a1 1 0 11-1.414-1.414L17.793 5.207z"></path></svg>
				`@ -0,0 +1 @@`
				`<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" data-v-4fa90e7f=""><path d="M14.33 7.17C13.588 7.058 12.807 7 12 7c-4.97 0-9 2.239-9 5 0 1.44 1.096 2.738 2.85 3.65l2.362-2.362a4 4 0 015.076-5.076l1.043-1.043zM11.23 15.926a4 4 0 004.695-4.695l2.648-2.647C20.078 9.478 21 10.68 21 12c0 2.761-4.03 5-9 5-.598 0-1.183-.032-1.749-.094l.98-.98zM17.793 5.207a1 1 0 111.414 1.414L6.48 19.35a1 1 0 11-1.414-1.414L17.793 5.207z"></path></svg>`