Merge branch 'master' into nymkappa/bugfix/block-prediction-chart-no-data

backend/src/api/blocks.ts

@@ -578,7 +578,7 @@ class Blocks {
 
     // Index the response if needed
     if (Common.blocksSummariesIndexingEnabled() === true) {
-      await BlocksSummariesRepository.$saveSummary(block.height, summary);
+      await BlocksSummariesRepository.$saveSummary(block.height, summary, null);
     }
 
     return summary.transactions;

backend/src/api/database-migration.ts

@@ -4,7 +4,7 @@ import logger from '../logger';
 import { Common } from './common';
 
 class DatabaseMigration {
-  private static currentVersion = 31;
+  private static currentVersion = 33;
   private queryTimeout = 120000;
   private statisticsAddedIndexed = false;
   private uniqueLogs: string[] = [];
@@ -297,7 +297,14 @@ class DatabaseMigration {
       await this.$executeQuery('ALTER TABLE `prices` ADD `id` int NULL AUTO_INCREMENT UNIQUE');
       await this.$executeQuery('DROP TABLE IF EXISTS `blocks_prices`');
       await this.$executeQuery(this.getCreateBlocksPricesTableQuery(), await this.$checkIfTableExists('blocks_prices'));
+    }
 
+    if (databaseSchemaVersion < 32 && isBitcoin == true) {
+      await this.$executeQuery('ALTER TABLE `blocks_summaries` ADD `template` JSON DEFAULT "[]"');
+    }
+
+    if (databaseSchemaVersion < 33 && isBitcoin == true) {
+      await this.$executeQuery('ALTER TABLE `geo_names` CHANGE `type` `type` enum("city","country","division","continent","as_organization", "country_iso_code") NOT NULL');
     }
   }
 

backend/src/api/explorer/nodes.api.ts

@@ -93,6 +93,132 @@ class NodesApi {
       throw e;
     }
   }
+
+  public async $getNodesISP() {
+    try {
+      let query = `SELECT nodes.as_number as ispId, geo_names.names as names, COUNT(DISTINCT nodes.public_key) as nodesCount, SUM(capacity) as capacity
+        FROM nodes
+        JOIN geo_names ON geo_names.id = nodes.as_number
+        JOIN channels ON channels.node1_public_key = nodes.public_key OR channels.node2_public_key = nodes.public_key
+        GROUP BY as_number
+        ORDER BY COUNT(DISTINCT nodes.public_key) DESC
+      `;
+      const [nodesCountPerAS]: any = await DB.query(query);
+
+      query = `SELECT COUNT(*) as total FROM nodes WHERE as_number IS NOT NULL`;
+      const [nodesWithAS]: any = await DB.query(query);
+
+      const nodesPerAs: any[] = [];
+      for (const as of nodesCountPerAS) {
+        nodesPerAs.push({
+          ispId: as.ispId,
+          name: JSON.parse(as.names),
+          count: as.nodesCount,
+          share: Math.floor(as.nodesCount / nodesWithAS[0].total * 10000) / 100,
+          capacity: as.capacity,
+        })
+      }
+
+      return nodesPerAs;
+    } catch (e) {
+      logger.err(`Cannot get nodes grouped by AS. Reason: ${e instanceof Error ? e.message : e}`);
+      throw e;
+    }
+  }
+
+  public async $getNodesPerCountry(countryId: string) {
+    try {
+      const query = `
+        SELECT node_stats.public_key, node_stats.capacity, node_stats.channels, nodes.alias,
+          UNIX_TIMESTAMP(nodes.first_seen) as first_seen, UNIX_TIMESTAMP(nodes.updated_at) as updated_at,
+          geo_names_city.names as city
+        FROM node_stats
+        JOIN (
+          SELECT public_key, MAX(added) as last_added
+          FROM node_stats
+          GROUP BY public_key
+        ) as b ON b.public_key = node_stats.public_key AND b.last_added = node_stats.added
+        JOIN nodes ON nodes.public_key = node_stats.public_key
+        JOIN geo_names geo_names_country ON geo_names_country.id = nodes.country_id AND geo_names_country.type = 'country'
+        LEFT JOIN geo_names geo_names_city ON geo_names_city.id = nodes.city_id AND geo_names_city.type = 'city'
+        WHERE geo_names_country.id = ?
+        ORDER BY capacity DESC
+      `;
+
+      const [rows]: any = await DB.query(query, [countryId]);
+      for (let i = 0; i < rows.length; ++i) {
+        rows[i].city = JSON.parse(rows[i].city);
+      }
+      return rows;
+    } catch (e) {
+      logger.err(`Cannot get nodes for country id ${countryId}. Reason: ${e instanceof Error ? e.message : e}`);
+      throw e;
+    }
+  }
+
+  public async $getNodesPerISP(ISPId: string) {
+    try {
+      const query = `
+        SELECT node_stats.public_key, node_stats.capacity, node_stats.channels, nodes.alias,
+          UNIX_TIMESTAMP(nodes.first_seen) as first_seen, UNIX_TIMESTAMP(nodes.updated_at) as updated_at,
+          geo_names_city.names as city, geo_names_country.names as country
+        FROM node_stats
+        JOIN (
+          SELECT public_key, MAX(added) as last_added
+          FROM node_stats
+          GROUP BY public_key
+        ) as b ON b.public_key = node_stats.public_key AND b.last_added = node_stats.added
+        JOIN nodes ON nodes.public_key = node_stats.public_key
+        JOIN geo_names geo_names_country ON geo_names_country.id = nodes.country_id AND geo_names_country.type = 'country'
+        LEFT JOIN geo_names geo_names_city ON geo_names_city.id = nodes.city_id AND geo_names_city.type = 'city'
+        WHERE nodes.as_number = ?
+        ORDER BY capacity DESC
+      `;
+
+      const [rows]: any = await DB.query(query, [ISPId]);
+      for (let i = 0; i < rows.length; ++i) {
+        rows[i].country = JSON.parse(rows[i].country);
+        rows[i].city = JSON.parse(rows[i].city);
+      }
+      return rows;
+    } catch (e) {
+      logger.err(`Cannot get nodes for ISP id ${ISPId}. Reason: ${e instanceof Error ? e.message : e}`);
+      throw e;
+    }
+  }
+
+  public async $getNodesCountries() {
+    try {
+      let query = `SELECT geo_names.names as names, geo_names_iso.names as iso_code, COUNT(DISTINCT nodes.public_key) as nodesCount, SUM(capacity) as capacity
+        FROM nodes
+        JOIN geo_names ON geo_names.id = nodes.country_id AND geo_names.type = 'country'
+        JOIN geo_names geo_names_iso ON geo_names_iso.id = nodes.country_id AND geo_names_iso.type = 'country_iso_code'
+        JOIN channels ON channels.node1_public_key = nodes.public_key OR channels.node2_public_key = nodes.public_key
+        GROUP BY country_id
+        ORDER BY COUNT(DISTINCT nodes.public_key) DESC
+      `;
+      const [nodesCountPerCountry]: any = await DB.query(query);
+
+      query = `SELECT COUNT(*) as total FROM nodes WHERE country_id IS NOT NULL`;
+      const [nodesWithAS]: any = await DB.query(query);
+
+      const nodesPerCountry: any[] = [];
+      for (const country of nodesCountPerCountry) {
+        nodesPerCountry.push({
+          name: JSON.parse(country.names),
+          iso: country.iso_code, 
+          count: country.nodesCount,
+          share: Math.floor(country.nodesCount / nodesWithAS[0].total * 10000) / 100,
+          capacity: country.capacity,
+        })
+      }
+
+      return nodesPerCountry;
+    } catch (e) {
+      logger.err(`Cannot get nodes grouped by AS. Reason: ${e instanceof Error ? e.message : e}`);
+      throw e;
+    }
+  }
 }
 
 export default new NodesApi();

backend/src/api/explorer/nodes.routes.ts

@@ -1,13 +1,19 @@
 import config from '../../config';
 import { Application, Request, Response } from 'express';
 import nodesApi from './nodes.api';
+import DB from '../../database';
+
 class NodesRoutes {
   constructor() { }
 
   public initRoutes(app: Application) {
     app
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/country/:country', this.$getNodesPerCountry)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/isp/:isp', this.$getNodesPerISP)
       .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/search/:search', this.$searchNode)
       .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/top', this.$getTopNodes)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/isp', this.$getNodesISP)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/countries', this.$getNodesCountries)
       .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key/statistics', this.$getHistoricalNodeStats)
       .get(config.MEMPOOL.API_URL_PREFIX + 'lightning/nodes/:public_key', this.$getNode)
     ;
@@ -56,6 +62,85 @@ class NodesRoutes {
       res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
+
+  private async $getNodesISP(req: Request, res: Response) {
+    try {
+      const nodesPerAs = await nodesApi.$getNodesISP();
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
+      res.json(nodesPerAs);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getNodesPerCountry(req: Request, res: Response) {
+    try {
+      const [country]: any[] = await DB.query(
+        `SELECT geo_names.id, geo_names_country.names as country_names
+        FROM geo_names
+        JOIN geo_names geo_names_country on geo_names.id = geo_names_country.id AND geo_names_country.type = 'country'
+        WHERE geo_names.type = 'country_iso_code' AND geo_names.names = ?`,
+        [req.params.country]
+      );
+
+      if (country.length === 0) {
+        res.status(404).send(`This country does not exist or does not host any lightning nodes on clearnet`);
+        return;
+      }
+
+      const nodes = await nodesApi.$getNodesPerCountry(country[0].id);
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
+      res.json({
+        country: JSON.parse(country[0].country_names),
+        nodes: nodes,
+      });
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getNodesPerISP(req: Request, res: Response) {
+    try {
+      const [isp]: any[] = await DB.query(
+        `SELECT geo_names.names as isp_name
+        FROM geo_names
+        WHERE geo_names.type = 'as_organization' AND geo_names.id = ?`,
+        [req.params.isp]
+      );
+
+      if (isp.length === 0) {
+        res.status(404).send(`This ISP does not exist or does not host any lightning nodes on clearnet`);
+        return;
+      }
+
+      const nodes = await nodesApi.$getNodesPerISP(req.params.isp);
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
+      res.json({
+        isp: JSON.parse(isp[0].isp_name),
+        nodes: nodes,
+      });
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
+
+  private async $getNodesCountries(req: Request, res: Response) {
+    try {
+      const nodesPerAs = await nodesApi.$getNodesCountries();
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
+      res.json(nodesPerAs);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
 }
 
 export default new NodesRoutes();

backend/src/api/mining/mining-routes.ts

@@ -26,6 +26,7 @@ class MiningRoutes {
       .get(config.MEMPOOL.API_URL_PREFIX + 'mining/blocks/sizes-weights/:interval', this.$getHistoricalBlockSizeAndWeight)
       .get(config.MEMPOOL.API_URL_PREFIX + 'mining/difficulty-adjustments/:interval', this.$getDifficultyAdjustments)
       .get(config.MEMPOOL.API_URL_PREFIX + 'mining/blocks/predictions/:interval', this.$getHistoricalBlockPrediction)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'mining/blocks/audit/:hash', this.$getBlockAudit)
     ;
   }
 
@@ -233,6 +234,18 @@ class MiningRoutes {
       res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
+
+  public async $getBlockAudit(req: Request, res: Response) {
+    try {
+      const audit = await BlocksAuditsRepository.$getBlockAudit(req.params.hash);
+      res.header('Pragma', 'public');
+      res.header('Cache-control', 'public');
+      res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
+      res.json(audit);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
 }
 
 export default new MiningRoutes();

backend/src/api/websocket-handler.ts

@@ -17,6 +17,7 @@ import rbfCache from './rbf-cache';
 import difficultyAdjustment from './difficulty-adjustment';
 import feeApi from './fee-api';
 import BlocksAuditsRepository from '../repositories/BlocksAuditsRepository';
+import BlocksSummariesRepository from '../repositories/BlocksSummariesRepository';
 
 class WebsocketHandler {
   private wss: WebSocket.Server | undefined;
@@ -442,6 +443,19 @@ class WebsocketHandler {
       mBlockDeltas = mempoolBlocks.getMempoolBlockDeltas();
 
       if (Common.indexingEnabled()) {
+        const stripped = _mempoolBlocks[0].transactions.map((tx) => {
+          return {
+            txid: tx.txid,
+            vsize: tx.vsize,
+            fee: tx.fee ? Math.round(tx.fee) : 0,
+            value: tx.value,
+          };
+        });  
+        BlocksSummariesRepository.$saveSummary(block.height, null, {
+          id: block.id,
+          transactions: stripped
+        });
+
         BlocksAuditsRepository.$saveAudit({
           time: block.timestamp,
           height: block.height,

backend/src/repositories/BlocksAuditsRepository.ts

@@ -1,3 +1,4 @@
+import transactionUtils from '../api/transaction-utils';
 import DB from '../database';
 import logger from '../logger';
 import { BlockAudit } from '../mempool.interfaces';
@@ -45,6 +46,30 @@ class BlocksAuditRepositories {
       throw e;
     }
   }
+
+  public async $getBlockAudit(hash: string): Promise<any> {
+    try {
+      const [rows]: any[] = await DB.query(
+        `SELECT blocks.height, blocks.hash as id, UNIX_TIMESTAMP(blocks.blockTimestamp) as timestamp, blocks.size,
+        blocks.weight, blocks.tx_count,
+        transactions, template, missing_txs as missingTxs, added_txs as addedTxs, match_rate as matchRate
+        FROM blocks_audits
+        JOIN blocks ON blocks.hash = blocks_audits.hash
+        JOIN blocks_summaries ON blocks_summaries.id = blocks_audits.hash
+        WHERE blocks_audits.hash = "${hash}"
+      `);
+      
+      rows[0].missingTxs = JSON.parse(rows[0].missingTxs);
+      rows[0].addedTxs = JSON.parse(rows[0].addedTxs);
+      rows[0].transactions = JSON.parse(rows[0].transactions);
+      rows[0].template = JSON.parse(rows[0].template);
+            
+      return rows[0];
+    } catch (e: any) {
+      logger.err(`Cannot fetch block audit from db. Reason: ` + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
 }
 
 export default new BlocksAuditRepositories();

backend/src/repositories/BlocksSummariesRepository.ts

@@ -17,14 +17,24 @@ class BlocksSummariesRepository {
     return undefined;
   }
 
-  public async $saveSummary(height: number, summary: BlockSummary) {
+  public async $saveSummary(height: number, mined: BlockSummary | null = null, template: BlockSummary | null = null) {
+    const blockId = mined?.id ?? template?.id;
     try {
-      await DB.query(`INSERT INTO blocks_summaries VALUE (?, ?, ?)`, [height, summary.id, JSON.stringify(summary.transactions)]);
+      const [dbSummary]: any[] = await DB.query(`SELECT * FROM blocks_summaries WHERE id = "${blockId}"`);
+      if (dbSummary.length === 0) { // First insertion
+        await DB.query(`INSERT INTO blocks_summaries VALUE (?, ?, ?, ?)`, [
+          height, blockId, JSON.stringify(mined?.transactions ?? []), JSON.stringify(template?.transactions ?? [])
+        ]);
+      } else if (mined !== null) { // Update mined block summary
+        await DB.query(`UPDATE blocks_summaries SET transactions = ? WHERE id = "${mined.id}"`, [JSON.stringify(mined?.transactions)]);
+      } else if (template !== null) { // Update template block summary
+        await DB.query(`UPDATE blocks_summaries SET template = ? WHERE id = "${template.id}"`, [JSON.stringify(template?.transactions)]);
+      }
     } catch (e: any) {
       if (e.errno === 1062) { // ER_DUP_ENTRY - This scenario is possible upon node backend restart
-        logger.debug(`Cannot save block summary for ${summary.id} because it has already been indexed, ignoring`);
+        logger.debug(`Cannot save block summary for ${blockId} because it has already been indexed, ignoring`);
       } else {
-        logger.debug(`Cannot save block summary for ${summary.id}. Reason: ${e instanceof Error ? e.message : e}`);
+        logger.debug(`Cannot save block summary for ${blockId}. Reason: ${e instanceof Error ? e.message : e}`);
         throw e;
       }
     }

backend/src/tasks/lightning/sync-tasks/node-locations.ts

@@ -39,6 +39,13 @@ export async function $lookupNodeLocation(): Promise<void> {
                 [city.country?.geoname_id, JSON.stringify(city.country?.names)]);
              }
 
+            // Store Country ISO code
+            if (city.country?.iso_code) {
+              await DB.query(
+               `INSERT IGNORE INTO geo_names (id, type, names) VALUES (?, 'country_iso_code', ?)`,
+               [city.country?.geoname_id, city.country?.iso_code]);
+            }
+
             // Store Division
             if (city.subdivisions && city.subdivisions[0]) {
               await DB.query(

backend/src/tasks/price-feeds/kraken-api.ts

@@ -62,7 +62,7 @@ class KrakenApi implements PriceFeed {
     // CHF weekly price history goes back to timestamp 1575504000 (December 5, 2019)
     // AUD weekly price history goes back to timestamp 1591833600 (June 11, 2020)
 
-    const priceHistory: any = {}; // map: timestamp -> Prices
+    let priceHistory: any = {}; // map: timestamp -> Prices
 
     for (const currency of this.currencies) {
       const response = await query(this.urlHist.replace('{GRANULARITY}', '10080') + currency);
@@ -83,6 +83,10 @@ class KrakenApi implements PriceFeed {
     }
 
     for (const time in priceHistory) {
+      if (priceHistory[time].USD === -1) {
+        delete priceHistory[time];
+        continue;
+      }
       await PricesRepository.$savePrices(parseInt(time, 10), priceHistory[time]);
     }
 

frontend/src/app/app-routing.module.ts

@@ -3,6 +3,7 @@ import { Routes, RouterModule, PreloadAllModules } from '@angular/router';
 import { StartComponent } from './components/start/start.component';
 import { TransactionComponent } from './components/transaction/transaction.component';
 import { BlockComponent } from './components/block/block.component';
+import { BlockAuditComponent } from './components/block-audit/block-audit.component';
 import { AddressComponent } from './components/address/address.component';
 import { MasterPageComponent } from './components/master-page/master-page.component';
 import { AboutComponent } from './components/about/about.component';
@@ -88,6 +89,15 @@ let routes: Routes = [
               },
             ],
           },
+          {
+            path: 'block-audit',
+            children: [
+              {
+                path: ':id',
+                component: BlockAuditComponent,
+              },
+            ],
+          },
           {
             path: 'docs',
             loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)
@@ -182,6 +192,15 @@ let routes: Routes = [
               },
             ],
           },
+          {
+            path: 'block-audit',
+            children: [
+              {
+                path: ':id',
+                component: BlockAuditComponent,
+              },
+            ],
+          },
           {
             path: 'docs',
             loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)
@@ -273,6 +292,15 @@ let routes: Routes = [
           },
         ],
       },
+      {
+        path: 'block-audit',
+        children: [
+          {
+            path: ':id',
+            component: BlockAuditComponent
+          },
+        ],
+      },
       {
         path: 'docs',
         loadChildren: () => import('./docs/docs.module').then(m => m.DocsModule)

frontend/src/app/components/block-audit/block-audit.component.html

@@ -0,0 +1,111 @@
+<div class="container-xl" (window:resize)="onResize($event)">
+
+  <div *ngIf="(auditObservable$ | async) as blockAudit; else skeleton">
+    <div class="title-block" id="block">
+      <h1>
+        <span class="next-previous-blocks">
+          <span i18n="shared.block-title">Block </span>
+          &nbsp;
+          <a [routerLink]="['/block/' | relativeUrl, blockAudit.id]">{{ blockAudit.height }}</a>
+          &nbsp;
+          <span i18n="shared.template-vs-mined">Template vs Mined</span>
+        </span>
+      </h1>
+
+      <div class="grow"></div>
+
+      <button [routerLink]="['/' | relativeUrl]" class="btn btn-sm">&#10005;</button>
+    </div>
+
+    <!-- OVERVIEW -->
+    <div class="box mb-3">
+      <div class="row">
+        <!-- LEFT COLUMN -->
+        <div class="col-sm">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td class="td-width" i18n="block.hash">Hash</td>
+                <td><a [routerLink]="['/block/' | relativeUrl, blockAudit.id]" title="{{ blockAudit.id }}">{{ blockAudit.id | shortenString : 13 }}</a>
+                  <app-clipboard class="d-none d-sm-inline-block" [text]="blockAudit.id"></app-clipboard>
+                </td>
+              </tr>
+              <tr>
+                <td i18n="blockAudit.timestamp">Timestamp</td>
+                <td>
+                  &lrm;{{ blockAudit.timestamp * 1000 | date:'yyyy-MM-dd HH:mm' }}
+                  <div class="lg-inline">
+                    <i class="symbol">(<app-time-since [time]="blockAudit.timestamp" [fastRender]="true">
+                      </app-time-since>)</i>
+                  </div>
+                </td>
+              </tr>
+              <tr>
+                <td i18n="blockAudit.size">Size</td>
+                <td [innerHTML]="'&lrm;' + (blockAudit.size | bytes: 2)"></td>
+              </tr>
+              <tr>
+                <td i18n="block.weight">Weight</td>
+                <td [innerHTML]="'&lrm;' + (blockAudit.weight | wuBytes: 2)"></td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+
+        <!-- RIGHT COLUMN -->
+        <div class="col-sm" *ngIf="blockAudit">
+          <table class="table table-borderless table-striped">
+            <tbody>
+              <tr>
+                <td class="td-width" i18n="shared.transaction-count">Transactions</td>
+                <td>{{ blockAudit.tx_count }}</td>
+              </tr>
+              <tr>
+                <td i18n="block.match-rate">Match rate</td>
+                <td>{{ blockAudit.matchRate }}%</td>
+              </tr>
+              <tr>
+                <td i18n="block.missing-txs">Missing txs</td>
+                <td>{{ blockAudit.missingTxs.length }}</td>
+              </tr>
+              <tr>
+                <td i18n="block.added-txs">Added txs</td>
+                <td>{{ blockAudit.addedTxs.length }}</td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </div> <!-- row -->
+    </div> <!-- box -->
+
+    <!-- ADDED vs MISSING button -->
+    <div class="d-flex justify-content-center menu mt-3" *ngIf="isMobile">
+      <a routerLinkActive="active" class="btn btn-primary w-50 mr-1 ml-1 menu-button" i18n="block.missing-txs"
+        fragment="missing" (click)="changeMode('missing')">Missing</a>
+      <a routerLinkActive="active" class="btn btn-primary w-50 mr-1 ml-1 menu-button" i18n="block.added-txs"
+        fragment="added" (click)="changeMode('added')">Added</a>
+    </div>
+  </div>
+
+  <!-- VISUALIZATIONS -->
+  <div class="box">
+    <div class="row">
+      <!-- MISSING TX RENDERING -->
+      <div class="col-sm" *ngIf="webGlEnabled">
+        <app-block-overview-graph #blockGraphTemplate [isLoading]="isLoading" [resolution]="75"
+          [blockLimit]="stateService.blockVSize" [orientation]="'top'" [flip]="false"
+          (txClickEvent)="onTxClick($event)"></app-block-overview-graph>
+      </div>
+
+      <!-- ADDED TX RENDERING -->
+      <div class="col-sm" *ngIf="webGlEnabled && !isMobile">
+        <app-block-overview-graph #blockGraphMined [isLoading]="isLoading" [resolution]="75"
+          [blockLimit]="stateService.blockVSize" [orientation]="'top'" [flip]="false"
+          (txClickEvent)="onTxClick($event)"></app-block-overview-graph>
+      </div>
+    </div> <!-- row -->
+  </div> <!-- box -->
+
+  <ng-template #skeleton></ng-template>
+
+</div>

frontend/src/app/components/block-audit/block-audit.component.scss

@@ -0,0 +1,40 @@
+.title-block {
+  border-top: none;
+}
+
+.table {
+  tr td {
+    &:last-child {
+      text-align: right;
+      @media (min-width: 768px) {
+        text-align: left;
+      }
+    }
+  }
+}
+
+.block-tx-title {
+  display: flex;
+  justify-content: space-between;
+  flex-direction: column;
+  position: relative;
+  @media (min-width: 550px) {
+    flex-direction: row;
+  }
+  h2 {
+    line-height: 1;
+    margin: 0;
+    position: relative;
+    padding-bottom: 10px;
+    @media (min-width: 550px) {
+      padding-bottom: 0px;
+      align-self: end;
+    }
+  }
+}
+
+.menu-button {
+  @media (min-width: 768px) {
+    max-width: 150px;
+  }
+}

frontend/src/app/components/block-audit/block-audit.component.ts

@@ -0,0 +1,120 @@
+import { Component, OnDestroy, OnInit, ViewChild } from '@angular/core';
+import { ActivatedRoute, ParamMap, Router } from '@angular/router';
+import { Observable } from 'rxjs';
+import { map, share, switchMap, tap } from 'rxjs/operators';
+import { BlockAudit, TransactionStripped } from 'src/app/interfaces/node-api.interface';
+import { ApiService } from 'src/app/services/api.service';
+import { StateService } from 'src/app/services/state.service';
+import { detectWebGL } from 'src/app/shared/graphs.utils';
+import { RelativeUrlPipe } from 'src/app/shared/pipes/relative-url/relative-url.pipe';
+import { BlockOverviewGraphComponent } from '../block-overview-graph/block-overview-graph.component';
+
+@Component({
+  selector: 'app-block-audit',
+  templateUrl: './block-audit.component.html',
+  styleUrls: ['./block-audit.component.scss'],
+  styles: [`
+    .loadingGraphs {
+      position: absolute;
+      top: 50%;
+      left: calc(50% - 15px);
+      z-index: 100;
+    }
+  `],
+})
+export class BlockAuditComponent implements OnInit, OnDestroy {
+  blockAudit: BlockAudit = undefined;
+  transactions: string[];
+  auditObservable$: Observable<BlockAudit>;
+
+  paginationMaxSize: number;
+  page = 1;
+  itemsPerPage: number;
+
+  mode: 'missing' | 'added' = 'missing';
+  isLoading = true;
+  webGlEnabled = true;
+  isMobile = window.innerWidth <= 767.98;
+
+  @ViewChild('blockGraphTemplate') blockGraphTemplate: BlockOverviewGraphComponent;
+  @ViewChild('blockGraphMined') blockGraphMined: BlockOverviewGraphComponent;
+
+  constructor(
+    private route: ActivatedRoute,
+    public stateService: StateService,
+    private router: Router,
+    private apiService: ApiService
+  ) {
+    this.webGlEnabled = detectWebGL();
+  }
+
+  ngOnDestroy(): void {
+  }
+
+  ngOnInit(): void {
+    this.paginationMaxSize = window.matchMedia('(max-width: 670px)').matches ? 3 : 5;
+    this.itemsPerPage = this.stateService.env.ITEMS_PER_PAGE;
+
+    this.auditObservable$ = this.route.paramMap.pipe(
+      switchMap((params: ParamMap) => {
+        const blockHash: string = params.get('id') || '';
+        return this.apiService.getBlockAudit$(blockHash)
+          .pipe(
+            map((response) => {
+              const blockAudit = response.body;
+              for (let i = 0; i < blockAudit.template.length; ++i) {
+                if (blockAudit.missingTxs.includes(blockAudit.template[i].txid)) {
+                  blockAudit.template[i].status = 'missing';
+                } else if (blockAudit.addedTxs.includes(blockAudit.template[i].txid)) {
+                  blockAudit.template[i].status = 'added';
+                } else {
+                  blockAudit.template[i].status = 'found';
+                }
+              }
+              for (let i = 0; i < blockAudit.transactions.length; ++i) {
+                if (blockAudit.missingTxs.includes(blockAudit.transactions[i].txid)) {
+                  blockAudit.transactions[i].status = 'missing';
+                } else if (blockAudit.addedTxs.includes(blockAudit.transactions[i].txid)) {
+                  blockAudit.transactions[i].status = 'added';
+                } else {
+                  blockAudit.transactions[i].status = 'found';
+                }
+              }
+              return blockAudit;
+            }),
+            tap((blockAudit) => {
+              this.changeMode(this.mode);
+              if (this.blockGraphTemplate) {
+                this.blockGraphTemplate.destroy();
+                this.blockGraphTemplate.setup(blockAudit.template);
+              }
+              if (this.blockGraphMined) {
+                this.blockGraphMined.destroy();
+                this.blockGraphMined.setup(blockAudit.transactions);
+              }
+              this.isLoading = false;
+            }),
+          );
+      }),
+      share()
+    );
+  }
+
+  onResize(event: any) {
+    this.isMobile = event.target.innerWidth <= 767.98;
+    this.paginationMaxSize = event.target.innerWidth < 670 ? 3 : 5;
+  }
+
+  changeMode(mode: 'missing' | 'added') {
+    this.router.navigate([], { fragment: mode });
+    this.mode = mode;
+  }
+
+  onTxClick(event: TransactionStripped): void {
+    const url = new RelativeUrlPipe(this.stateService).transform(`/tx/${event.txid}`);
+    this.router.navigate([url]);
+  }
+
+  pageChange(page: number, target: HTMLElement) {
+  }
+}

frontend/src/app/components/block-fee-rates-graph/block-fee-rates-graph.component.html

@@ -2,10 +2,13 @@
 
 <div class="full-container">
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.block-fee-rates">Block Fee Rates</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
+
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(statsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
         <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="stats.blockCount >= 144">

frontend/src/app/components/block-fees-graph/block-fees-graph.component.html

@@ -2,10 +2,13 @@
 
 <div class="full-container">
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.block-fees">Block Fees</span>
-      <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
+
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(statsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
         <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="stats.blockCount >= 4320">

frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts

@@ -1,6 +1,5 @@
 import { Component, ElementRef, ViewChild, HostListener, Input, Output, EventEmitter, NgZone, AfterViewInit, OnDestroy } from '@angular/core';
-import { MempoolBlockDelta, TransactionStripped } from 'src/app/interfaces/websocket.interface';
+import { TransactionStripped } from 'src/app/interfaces/websocket.interface';
-import { WebsocketService } from 'src/app/services/websocket.service';
 import { FastVertexArray } from './fast-vertex-array';
 import BlockScene from './block-scene';
 import TxSprite from './tx-sprite';

frontend/src/app/components/block-overview-graph/tx-view.ts

@@ -25,6 +25,7 @@ export default class TxView implements TransactionStripped {
   vsize: number;
   value: number;
   feerate: number;
+  status?: 'found' | 'missing' | 'added';
 
   initialised: boolean;
   vertexArray: FastVertexArray;
@@ -43,6 +44,7 @@ export default class TxView implements TransactionStripped {
     this.vsize = tx.vsize;
     this.value = tx.value;
     this.feerate = tx.fee / tx.vsize;
+    this.status = tx.status;
     this.initialised = false;
     this.vertexArray = vertexArray;
 
@@ -140,6 +142,16 @@ export default class TxView implements TransactionStripped {
   }
 
   getColor(): Color {
+    // Block audit
+    if (this.status === 'found') {
+      // return hexToColor('1a4987');
+    } else if (this.status === 'missing') {
+      return hexToColor('039BE5');
+    } else if (this.status === 'added') {
+      return hexToColor('D81B60');
+    }
+
+    // Block component
     const feeLevelIndex = feeLevels.findIndex((feeLvl) => Math.max(1, this.feerate) < feeLvl) - 1;
     return hexToColor(mempoolFeeColors[feeLevelIndex] || mempoolFeeColors[mempoolFeeColors.length - 1]);
   }

frontend/src/app/components/block-prediction-graph/block-prediction-graph.component.html

@@ -2,10 +2,13 @@
 
 <div class="full-container">
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.block-prediction-accuracy">Block Prediction Accuracy</span>
-      <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
+
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(statsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
         <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="stats.blockCount >= 144">

frontend/src/app/components/block-rewards-graph/block-rewards-graph.component.html

@@ -3,10 +3,13 @@
 <div class="full-container">
 
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.block-rewards">Block Rewards</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
+  
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(statsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
         <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="stats.blockCount >= 4320">

frontend/src/app/components/block-sizes-weights-graph/block-sizes-weights-graph.component.html

@@ -1,10 +1,12 @@
 <div class="full-container">
 
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.block-sizes-weights">Block Sizes and Weights</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
 
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(blockSizesWeightsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">

frontend/src/app/components/block/block.component.ts

@@ -12,6 +12,7 @@ import { RelativeUrlPipe } from 'src/app/shared/pipes/relative-url/relative-url.
 import { BlockExtended, TransactionStripped } from 'src/app/interfaces/node-api.interface';
 import { ApiService } from 'src/app/services/api.service';
 import { BlockOverviewGraphComponent } from 'src/app/components/block-overview-graph/block-overview-graph.component';
+import { detectWebGL } from 'src/app/shared/graphs.utils';
 
 @Component({
   selector: 'app-block',
@@ -391,9 +392,3 @@ export class BlockComponent implements OnInit, OnDestroy {
     this.router.navigate([url]);
   }
 }
-
-function detectWebGL() {
-  const canvas = document.createElement('canvas');
-  const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
-  return (gl && gl instanceof WebGLRenderingContext);
-}

frontend/src/app/components/graphs/graphs.component.html

@@ -31,9 +31,13 @@
     <button class="btn btn-primary w-100" id="dropdownBasic1" ngbDropdownToggle i18n="lightning">Lightning</button>
     <div ngbDropdownMenu aria-labelledby="dropdownBasic1">
       <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/nodes-networks' | relativeUrl]"
-        i18n="lightning.nodes-networks">Nodes per network</a>
+        i18n="lightning.nodes-networks">Lightning nodes per network</a>
       <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/capacity' | relativeUrl]"
         i18n="lightning.capacity">Network capacity</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/nodes-per-isp' | relativeUrl]"
+        i18n="lightning.nodes-per-isp">Lightning nodes per ISP</a>
+      <a class="dropdown-item" routerLinkActive="active" [routerLink]="['/graphs/lightning/nodes-per-country' | relativeUrl]"
+        i18n="lightning.nodes-per-isp">Lightning nodes per country</a>
     </div>
   </div>
 </div>

frontend/src/app/components/hashrate-chart/hashrate-chart.component.html

@@ -23,10 +23,12 @@
   </div>
 
   <div class="card-header mb-0 mb-md-4" [style]="widget ? 'display:none' : ''">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.hashrate-difficulty">Hashrate & Difficulty</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
 
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(hashrateObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">

frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts

@@ -109,7 +109,7 @@ export class HashrateChartComponent implements OnInit {
                     while (hashIndex < data.hashrates.length) {
                       diffFixed.push({
                         timestamp: data.hashrates[hashIndex].timestamp,
-                        difficulty: data.difficulty[data.difficulty.length - 1].difficulty
+                        difficulty: data.difficulty.length > 0 ?  data.difficulty[data.difficulty.length - 1].difficulty : null
                       });
                       ++hashIndex;
                     }
@@ -231,11 +231,15 @@ export class HashrateChartComponent implements OnInit {
             } else if (tick.seriesIndex === 1) { // Difficulty
               let difficultyPowerOfTen = hashratePowerOfTen;
               let difficulty = tick.data[1];
+              if (difficulty === null) {
+                difficultyString = `${tick.marker} ${tick.seriesName}: No data<br>`;  
+              } else {
                 if (this.isMobile()) {
                   difficultyPowerOfTen = selectPowerOfTen(tick.data[1]);
                   difficulty = Math.round(tick.data[1] / difficultyPowerOfTen.divider);
                 }
                 difficultyString = `${tick.marker} ${tick.seriesName}: ${formatNumber(difficulty, this.locale, '1.2-2')} ${difficultyPowerOfTen.unit}<br>`;
+              }
             } else if (tick.seriesIndex === 2) { // Hashrate MA
               let hashrate = tick.data[1];
               if (this.isMobile()) {

frontend/src/app/components/hashrates-chart-pools/hashrate-chart-pools.component.html

@@ -3,10 +3,13 @@
 <div class="full-container">
 
   <div class="card-header mb-0 mb-md-4">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.pools-dominance">Pools Dominance</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
+
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(hashrateObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
         <label ngbButtonLabel class="btn-primary btn-sm" *ngIf="stats.blockCount >= 25920">

frontend/src/app/components/master-page/master-page.component.html

@@ -44,9 +44,6 @@
       <li class="nav-item" routerLinkActive="active" id="btn-graphs">
         <a class="nav-link" [routerLink]="['/graphs' | relativeUrl]" (click)="collapse()"><fa-icon [icon]="['fas', 'chart-area']" [fixedWidth]="true" i18n-title="master-page.graphs" title="Graphs"></fa-icon></a>
       </li>
-      <li class="nav-item d-none d-lg-block" routerLinkActive="active" id="btn-tv">
-        <a class="nav-link" [routerLink]="['/tv' | relativeUrl]" (click)="collapse()"><fa-icon [icon]="['fas', 'tv']" [fixedWidth]="true" i18n-title="master-page.tvview" title="TV view"></fa-icon></a>
-      </li>
       <li class="nav-item" routerLinkActive="active" id="btn-docs">
         <a class="nav-link" [routerLink]="['/docs' | relativeUrl ]" (click)="collapse()"><fa-icon [icon]="['fas', 'book']" [fixedWidth]="true" i18n-title="documentation.title" title="Documentation"></fa-icon></a>
       </li>

frontend/src/app/components/pool-ranking/pool-ranking.component.html

@@ -32,10 +32,12 @@
   </div>
 
   <div class="card-header" *ngIf="!widget">
+    <div class="d-flex d-md-block align-items-baseline">
       <span i18n="mining.pools">Pools Ranking</span>
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
     <form [formGroup]="radioGroupForm" class="formRadioGroup"
       *ngIf="!widget && (miningStatsObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">

frontend/src/app/components/statistics/statistics.component.html

@@ -3,14 +3,22 @@
     <div>
       <div class="card mb-3">
         <div class="card-header">
-          <i class="fa fa-area-chart"></i>
+          <div class="d-flex d-md-block align-items-baseline">
             <span i18n="statistics.memory-by-vBytes">Mempool by vBytes (sat/vByte)</span>
-          <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart('mempool')">
+            <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart('mempool')">
               <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
             </button>
+          </div>  
 
           <form [formGroup]="radioGroupForm" class="formRadioGroup"
             [class]="stateService.env.MINING_DASHBOARD ? 'mining' : ''" (click)="saveGraphPreference()">
+            <div *ngIf="!isMobile()" class="btn-group btn-group-toggle">
+              <label ngbButtonLabel class="btn-primary btn-sm mr-2">
+                <a [routerLink]="['/tv' | relativeUrl]" style="color: white">
+                  <fa-icon [icon]="['fas', 'tv']" [fixedWidth]="true" i18n-title="master-page.tvview" title="TV view"></fa-icon>
+                </a>
+                </label>
+            </div>
             <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">
               <label ngbButtonLabel class="btn-primary btn-sm">
                 <input ngbButton type="radio" [value]="'2h'" [routerLink]="['/graphs' | relativeUrl]" fragment="2h"> 2H
@@ -84,12 +92,13 @@
     <div>
       <div class="card mb-3">
         <div class="card-header">
-          <i class="fa fa-area-chart"></i>
+          <div class="d-flex d-md-block align-items-baseline">
             <span i18n="statistics.transaction-vbytes-per-second">Transaction vBytes per second (vB/s)</span>
-          <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart('incoming')">
+            <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart('incoming')">
               <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
             </button>
           </div>  
+        </div>
 
         <div class="card-body">
           <div class="incoming-transactions-graph">

frontend/src/app/components/statistics/statistics.component.ts

@@ -210,4 +210,8 @@ export class StatisticsComponent implements OnInit {
       this.incomingGraph.onSaveChart(this.timespan);
     }
   }
+
+  isMobile() {
+    return (window.innerWidth <= 767.98);
+  }
 }

frontend/src/app/graphs/graphs.routing.module.ts

@@ -20,6 +20,8 @@ import { TelevisionComponent } from '../components/television/television.compone
 import { DashboardComponent } from '../dashboard/dashboard.component';
 import { NodesNetworksChartComponent } from '../lightning/nodes-networks-chart/nodes-networks-chart.component';
 import { LightningStatisticsChartComponent } from '../lightning/statistics-chart/lightning-statistics-chart.component';
+import { NodesPerISPChartComponent } from '../lightning/nodes-per-isp-chart/nodes-per-isp-chart.component';
+import { NodesPerCountryChartComponent } from '../lightning/nodes-per-country-chart/nodes-per-country-chart.component';
 
 const browserWindow = window || {};
 // @ts-ignore
@@ -99,6 +101,14 @@ const routes: Routes = [
             path: 'lightning/capacity',
             component: LightningStatisticsChartComponent,
           },
+          {
+            path: 'lightning/nodes-per-isp',
+            component: NodesPerISPChartComponent,
+          },
+          {
+            path: 'lightning/nodes-per-country',
+            component: NodesPerCountryChartComponent,
+          },
           {
             path: '',
             redirectTo: 'mempool',

frontend/src/app/interfaces/node-api.interface.ts

@@ -128,11 +128,20 @@ export interface BlockExtended extends Block {
   extras?: BlockExtension;
 }
 
+export interface BlockAudit extends BlockExtended {
+  missingTxs: string[],
+  addedTxs: string[],
+  matchRate: number,
+  template: TransactionStripped[],
+  transactions: TransactionStripped[],
+}
+
 export interface TransactionStripped {
   txid: string;
   fee: number;
   vsize: number;
   value: number;
+  status?: 'found' | 'missing' | 'added';
 }
 
 export interface RewardStats {

frontend/src/app/interfaces/websocket.interface.ts

@@ -70,6 +70,7 @@ export interface TransactionStripped {
   fee: number;
   vsize: number;
   value: number;
+  status?: 'found' | 'missing' | 'added';
 }
 
 export interface IBackendInfo {

frontend/src/app/lightning/lightning.module.ts

@@ -18,6 +18,10 @@ import { NodeStatisticsChartComponent } from './node-statistics-chart/node-stati
 import { GraphsModule } from '../graphs/graphs.module';
 import { NodesNetworksChartComponent } from './nodes-networks-chart/nodes-networks-chart.component';
 import { ChannelsStatisticsComponent } from './channels-statistics/channels-statistics.component';
+import { NodesPerISPChartComponent } from './nodes-per-isp-chart/nodes-per-isp-chart.component';
+import { NodesPerCountry } from './nodes-per-country/nodes-per-country.component';
+import { NodesPerISP } from './nodes-per-isp/nodes-per-isp.component';
+import { NodesPerCountryChartComponent } from '../lightning/nodes-per-country-chart/nodes-per-country-chart.component';
 @NgModule({
   declarations: [
     LightningDashboardComponent,
@@ -33,6 +37,10 @@ import { ChannelsStatisticsComponent } from './channels-statistics/channels-stat
     LightningStatisticsChartComponent,
     NodesNetworksChartComponent,
     ChannelsStatisticsComponent,
+    NodesPerISPChartComponent,
+    NodesPerCountry,
+    NodesPerISP,
+    NodesPerCountryChartComponent,
   ],
   imports: [
     CommonModule,

frontend/src/app/lightning/lightning.routing.module.ts

@@ -4,6 +4,8 @@ import { LightningDashboardComponent } from './lightning-dashboard/lightning-das
 import { LightningWrapperComponent } from './lightning-wrapper/lightning-wrapper.component';
 import { NodeComponent } from './node/node.component';
 import { ChannelComponent } from './channel/channel.component';
+import { NodesPerCountry } from './nodes-per-country/nodes-per-country.component';
+import { NodesPerISP } from './nodes-per-isp/nodes-per-isp.component';
 
 const routes: Routes = [
     {
@@ -22,6 +24,14 @@ const routes: Routes = [
           path: 'channel/:short_id',
           component: ChannelComponent,
         },
+        {
+          path: 'nodes/country/:country',
+          component: NodesPerCountry,
+        },
+        {
+          path: 'nodes/isp/:isp',
+          component: NodesPerISP,
+        },
         {
           path: '**',
           redirectTo: ''

frontend/src/app/lightning/nodes-networks-chart/nodes-networks-chart.component.html

@@ -1,10 +1,12 @@
 <div [class]="widget === false ? 'full-container' : ''">
 
   <div class="card-header mb-0 mb-md-4" [style]="widget ? 'display:none' : ''">
-    <span i18n="mining.nodes-networks">Nodes count by network</span>
+    <div class="d-flex d-md-block align-items-baseline">
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <span i18n="lightning.nodes-networks">Lightning nodes per network</span>
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>  
 
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(nodesNetworkObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">

frontend/src/app/lightning/nodes-networks-chart/nodes-networks-chart.component.ts

@@ -61,7 +61,7 @@ export class NodesNetworksChartComponent implements OnInit {
     if (this.widget) {
       this.miningWindowPreference = '1y';
     } else {
-      this.seoService.setTitle($localize`Nodes per network`);
+      this.seoService.setTitle($localize`Lightning nodes per network`);
       this.miningWindowPreference = this.miningService.getDefaultTimespan('all');
     }
     this.radioGroupForm = this.formBuilder.group({ dateSpan: this.miningWindowPreference });

frontend/src/app/lightning/nodes-per-country-chart/nodes-per-country-chart.component.html

@@ -0,0 +1,58 @@
+<div class="full-container h-100">
+
+  <div class="card-header">
+    <div class="d-flex d-md-block align-items-baseline" style="margin-bottom: -5px">
+      <span i18n="lightning.nodes-per-country">Lightning nodes per country</span>
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+        <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
+      </button>
+    </div>
+    <small style="color: #ffffff66" i18n="lightning.tor-nodes-excluded">(Tor nodes excluded)</small>
+  </div>
+
+  <div class="container pb-lg-0 bottom-padding">
+    <div class="pb-lg-5">
+      <div class="chart w-100" echarts [initOpts]="chartInitOptions" [options]="chartOptions"
+        (chartInit)="onChartInit($event)">
+      </div>
+    </div>
+
+    <div class="text-center loadingGraphs" *ngIf="isLoading">
+      <div class="spinner-border text-light"></div>
+    </div>
+
+    <table class="table table-borderless text-center m-auto" style="max-width: 900px">
+      <thead>
+        <tr>
+          <th class="text-left rank" i18n="mining.rank">Rank</th>
+          <th class="text-left name" i18n="lightning.as-name">Name</th>
+          <th class="text-right share" i18n="lightning.share">Share</th>
+          <th class="text-right nodes" i18n="lightning.nodes-count">Nodes</th>
+          <th class="text-right capacity" i18n="lightning.capacity">Capacity</th>
+        </tr>
+      </thead>
+      <tbody [attr.data-cy]="'pools-table'" *ngIf="(nodesPerCountryObservable$ | async) as countries">
+        <tr *ngFor="let country of countries">
+          <td class="text-left rank">{{ country.rank }}</td>
+          <td class="text-left text-truncate name">
+            <div class="d-flex">
+              <span style="font-size: 20px">{{ country.flag }}</span>
+              &nbsp;
+              <a class="mt-auto mb-auto" [routerLink]="['/lightning/nodes/country' | relativeUrl, country.iso]">{{ country.name.en }}</a>
+            </div>
+          </td>
+          <td class="text-right share">{{ country.share }}%</td>
+          <td class="text-right nodes">{{ country.count }}</td>
+          <td class="text-right capacity">
+            <app-amount *ngIf="country.capacity > 100000000; else smallchannel" [satoshis]="country.capacity" [digitsInfo]="'1.2-2'" [noFiat]="true"></app-amount>
+            <ng-template #smallchannel>
+              {{ country.capacity | amountShortener: 1 }}
+              <span class="sats" i18n="shared.sats">sats</span>
+            </ng-template>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+
+</div>

frontend/src/app/lightning/nodes-per-country-chart/nodes-per-country-chart.component.scss

@@ -0,0 +1,81 @@
+.sats {
+  color: #ffffff66;
+  font-size: 12px;
+  top: 0px;
+}
+
+.card-header {
+  border-bottom: 0;
+  font-size: 18px;
+  @media (min-width: 465px) {
+    font-size: 20px;
+  }
+}
+
+.full-container {
+  padding: 0px 15px;
+  width: 100%;
+  height: calc(100% - 140px);
+  @media (max-width: 992px) {
+    height: calc(100% - 190px);
+  };
+  @media (max-width: 575px) {
+    height: calc(100% - 230px);
+  };
+}
+
+.chart {
+  max-height: 400px;
+  @media (max-width: 767.98px) {
+    max-height: 230px;
+    margin-top: -35px;
+  }
+}
+
+.bottom-padding {
+  @media (max-width: 992px) {
+    padding-bottom: 65px
+  };
+  @media (max-width: 576px) {
+    padding-bottom: 65px
+  };
+}
+
+.rank {
+  width: 20%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.name {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 80%;
+    max-width: 150px;
+    padding-left: 0;
+    padding-right: 0;
+  }
+}
+
+.share {
+  width: 20%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.nodes {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 10%;
+  }
+}
+
+.capacity {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 10%;
+    max-width: 100px;
+  }
+}

frontend/src/app/lightning/nodes-per-country-chart/nodes-per-country-chart.component.ts

@@ -0,0 +1,235 @@
+import { ChangeDetectionStrategy, Component, OnInit, HostBinding, NgZone } from '@angular/core';
+import { Router } from '@angular/router';
+import { EChartsOption, PieSeriesOption } from 'echarts';
+import { map, Observable, share, tap } from 'rxjs';
+import { chartColors } from 'src/app/app.constants';
+import { ApiService } from 'src/app/services/api.service';
+import { SeoService } from 'src/app/services/seo.service';
+import { StateService } from 'src/app/services/state.service';
+import { download } from 'src/app/shared/graphs.utils';
+import { AmountShortenerPipe } from 'src/app/shared/pipes/amount-shortener.pipe';
+import { RelativeUrlPipe } from 'src/app/shared/pipes/relative-url/relative-url.pipe';
+import { getFlagEmoji } from 'src/app/shared/graphs.utils';
+
+@Component({
+  selector: 'app-nodes-per-country-chart',
+  templateUrl: './nodes-per-country-chart.component.html',
+  styleUrls: ['./nodes-per-country-chart.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodesPerCountryChartComponent implements OnInit {
+  miningWindowPreference: string;
+
+  isLoading = true;
+  chartOptions: EChartsOption = {};
+  chartInitOptions = {
+    renderer: 'svg',
+  };
+  timespan = '';
+  chartInstance: any = undefined;
+
+  @HostBinding('attr.dir') dir = 'ltr';
+
+  nodesPerCountryObservable$: Observable<any>;
+
+  constructor(
+    private apiService: ApiService,
+    private seoService: SeoService,
+    private amountShortenerPipe: AmountShortenerPipe,
+    private zone: NgZone,
+    private stateService: StateService,
+    private router: Router,
+  ) {
+  }
+
+  ngOnInit(): void {
+    this.seoService.setTitle($localize`Lightning nodes per country`);
+
+    this.nodesPerCountryObservable$ = this.apiService.getNodesPerCountry()
+      .pipe(
+        map(data => {
+          for (let i = 0; i < data.length; ++i) {
+            data[i].rank = i + 1;
+            data[i].iso = data[i].iso.toLowerCase();
+            data[i].flag = getFlagEmoji(data[i].iso);
+          }
+          return data.slice(0, 100);
+        }),
+        tap(data => {
+          this.isLoading = false;
+          this.prepareChartOptions(data);
+        }),
+        share()
+      );
+  }
+
+  generateChartSerieData(country) {
+    const shareThreshold = this.isMobile() ? 2 : 1;
+    const data: object[] = [];
+    let totalShareOther = 0;
+    let totalNodeOther = 0;
+
+    let edgeDistance: string | number = '10%';
+    if (this.isMobile()) {
+      edgeDistance = 0;
+    }
+
+    country.forEach((country) => {
+      if (country.share < shareThreshold) {
+        totalShareOther += country.share;
+        totalNodeOther += country.count;
+        return;
+      }
+      data.push({
+        value: country.share,
+        name: country.name.en + (this.isMobile() ? `` : ` (${country.share}%)`),
+        label: {
+          overflow: 'truncate',
+          color: '#b1b1b1',
+          alignTo: 'edge',
+          edgeDistance: edgeDistance,
+        },
+        tooltip: {
+          show: !this.isMobile(),
+          backgroundColor: 'rgba(17, 19, 31, 1)',
+          borderRadius: 4,
+          shadowColor: 'rgba(0, 0, 0, 0.5)',
+          textStyle: {
+            color: '#b1b1b1',
+          },
+          borderColor: '#000',
+          formatter: () => {
+            return `<b style="color: white">${country.name.en} (${country.share}%)</b><br>` +
+              $localize`${country.count.toString()} nodes<br>` +
+              $localize`${this.amountShortenerPipe.transform(country.capacity / 100000000, 2)} BTC capacity`
+            ;
+          }
+        },
+        data: country.iso,
+      } as PieSeriesOption);
+    });
+
+    // 'Other'
+    data.push({
+      itemStyle: {
+        color: 'grey',
+      },
+      value: totalShareOther,
+      name: 'Other' + (this.isMobile() ? `` : ` (${totalShareOther.toFixed(2)}%)`),
+      label: {
+        overflow: 'truncate',
+        color: '#b1b1b1',
+        alignTo: 'edge',
+        edgeDistance: edgeDistance
+      },
+      tooltip: {
+        backgroundColor: 'rgba(17, 19, 31, 1)',
+        borderRadius: 4,
+        shadowColor: 'rgba(0, 0, 0, 0.5)',
+        textStyle: {
+          color: '#b1b1b1',
+        },
+        borderColor: '#000',
+        formatter: () => {
+          return `<b style="color: white">${'Other'} (${totalShareOther.toFixed(2)}%)</b><br>` +
+            totalNodeOther.toString() + ` nodes`;
+        },
+      },
+      data: 9999 as any
+    } as PieSeriesOption);
+
+    return data;
+  }
+
+  prepareChartOptions(country) {
+    let pieSize = ['20%', '80%']; // Desktop
+    if (this.isMobile()) {
+      pieSize = ['15%', '60%'];
+    }
+
+    this.chartOptions = {
+      animation: false,
+      color: chartColors,
+      tooltip: {
+        trigger: 'item',
+        textStyle: {
+          align: 'left',
+        }
+      },
+      series: [
+        {
+          zlevel: 0,
+          minShowLabelAngle: 3.6,
+          name: 'Mining pool',
+          type: 'pie',
+          radius: pieSize,
+          data: this.generateChartSerieData(country),
+          labelLine: {
+            lineStyle: {
+              width: 2,
+            },
+            length: this.isMobile() ? 1 : 20,
+            length2: this.isMobile() ? 1 : undefined,
+          },
+          label: {
+            fontSize: 14,
+          },
+          itemStyle: {
+            borderRadius: 1,
+            borderWidth: 1,
+            borderColor: '#000',
+          },
+          emphasis: {
+            itemStyle: {
+              shadowBlur: 40,
+              shadowColor: 'rgba(0, 0, 0, 0.75)',
+            },
+            labelLine: {
+              lineStyle: {
+                width: 4,
+              }
+            }
+          }
+        }
+      ],
+    };
+  }
+
+  isMobile() {
+    return (window.innerWidth <= 767.98);
+  }
+
+  onChartInit(ec) {
+    if (this.chartInstance !== undefined) {
+      return;
+    }
+    this.chartInstance = ec;
+
+    this.chartInstance.on('click', (e) => {
+      if (e.data.data === 9999) { // "Other"
+        return;
+      }
+      this.zone.run(() => {
+        const url = new RelativeUrlPipe(this.stateService).transform(`/lightning/nodes/country/${e.data.data}`);
+        this.router.navigate([url]);
+      });
+    });
+  }
+
+  onSaveChart() {
+    const now = new Date();
+    this.chartOptions.backgroundColor = '#11131f';
+    this.chartInstance.setOption(this.chartOptions);
+    download(this.chartInstance.getDataURL({
+      pixelRatio: 2,
+      excludeComponents: ['dataZoom'],
+    }), `lightning-nodes-per-country-${Math.round(now.getTime() / 1000)}.svg`);
+    this.chartOptions.backgroundColor = 'none';
+    this.chartInstance.setOption(this.chartOptions);
+  }
+
+  isEllipsisActive(e) {
+    return (e.offsetWidth < e.scrollWidth);
+  }
+}
+

frontend/src/app/lightning/nodes-per-country/nodes-per-country.component.html

@@ -0,0 +1,45 @@
+<div class="container-xl full-height" style="min-height: 335px">
+  <h1 class="float-left" i18n="lightning.nodes-in-country">
+    <span>Lightning nodes in {{ country?.name }}</span>
+    <span style="font-size: 50px; vertical-align:sub;"> {{ country?.flag }}</span>
+  </h1>
+
+  <div style="min-height: 295px">
+    <table class="table table-borderless">
+      <thead>
+        <th class="alias text-left" i18n="lightning.alias">Alias</th>
+        <th class="timestamp-first text-left" i18n="lightning.first_seen">First seen</th>
+        <th class="timestamp-update text-left" i18n="lightning.last_update">Last update</th>
+        <th class="capacity text-right" i18n="lightning.capacity">Capacity</th>
+        <th class="channels text-right" i18n="lightning.channels">Channels</th>
+        <th class="city text-right" i18n="lightning.city">City</th>
+      </thead>
+      <tbody *ngIf="nodes$ | async as nodes">
+        <tr *ngFor="let node of nodes; let i= index; trackBy: trackByPublicKey">
+          <td class="alias text-left text-truncate">
+            <a [routerLink]="['/lightning/node/' | relativeUrl, node.public_key]">{{ node.alias }}</a>
+          </td>
+          <td class="timestamp-first text-left">
+            <app-timestamp [customFormat]="'yyyy-MM-dd'" [unixTime]="node.first_seen"></app-timestamp>
+          </td>
+          <td class="timestamp-update text-left">
+            <app-timestamp [customFormat]="'yyyy-MM-dd'" [unixTime]="node.updated_at"></app-timestamp>
+          </td>
+          <td class="capacity text-right">
+            <app-amount *ngIf="node.capacity > 100000000; else smallchannel" [satoshis]="node.capacity" [digitsInfo]="'1.2-2'" [noFiat]="true"></app-amount>
+            <ng-template #smallchannel>
+              {{ node.capacity | amountShortener: 1 }}
+              <span class="sats" i18n="shared.sats">sats</span>
+            </ng-template>
+          </td>
+          <td class="channels text-right">
+            {{ node.channels }}
+          </td>
+          <td class="city text-right text-truncate">
+            {{ node?.city?.en ?? '-' }}
+          </td>
+      </tbody>
+    </table>
+  </div>
+
+</div>

frontend/src/app/lightning/nodes-per-country/nodes-per-country.component.scss

@@ -0,0 +1,56 @@
+.container-xl {
+  max-width: 1400px;
+  padding-bottom: 100px;
+}
+
+.sats {
+  color: #ffffff66;
+  font-size: 12px;
+  top: 0px;
+}
+
+.alias {
+  width: 30%;
+  max-width: 400px;
+  padding-right: 70px;
+  @media (max-width: 576px) {
+    width: 50%;
+    max-width: 150px;
+    padding-right: 0px;
+  }
+}
+
+.timestamp-first {
+  width: 20%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.timestamp-update {
+  width: 16%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.capacity {
+  width: 10%;
+  @media (max-width: 576px) {
+    width: 25%;
+  }
+}
+
+.channels {
+  width: 10%;
+  @media (max-width: 576px) {
+    width: 25%;
+  }
+}
+
+.city {
+  max-width: 150px;
+  @media (max-width: 576px) {
+    display: none
+  }
+}

frontend/src/app/lightning/nodes-per-country/nodes-per-country.component.ts

@@ -0,0 +1,41 @@
+import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { map, Observable } from 'rxjs';
+import { ApiService } from 'src/app/services/api.service';
+import { SeoService } from 'src/app/services/seo.service';
+import { getFlagEmoji } from 'src/app/shared/graphs.utils';
+
+@Component({
+  selector: 'app-nodes-per-country',
+  templateUrl: './nodes-per-country.component.html',
+  styleUrls: ['./nodes-per-country.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodesPerCountry implements OnInit {
+  nodes$: Observable<any>;
+  country: {name: string, flag: string};
+
+  constructor(
+    private apiService: ApiService,
+    private seoService: SeoService,
+    private route: ActivatedRoute,
+  ) { }
+
+  ngOnInit(): void {
+    this.nodes$ = this.apiService.getNodeForCountry$(this.route.snapshot.params.country)
+      .pipe(
+        map(response => {
+          this.country = {
+            name: response.country.en,
+            flag: getFlagEmoji(this.route.snapshot.params.country)
+          };
+          this.seoService.setTitle($localize`Lightning nodes in ${this.country.name}`);
+          return response.nodes;
+        })
+      );
+  }
+
+  trackByPublicKey(index: number, node: any) {
+    return node.public_key;
+  }
+}

frontend/src/app/lightning/nodes-per-isp-chart/nodes-per-isp-chart.component.html

@@ -0,0 +1,48 @@
+<div class="full-container h-100">
+
+  <div class="card-header">
+    <div class="d-flex d-md-block align-items-baseline" style="margin-bottom: -5px">
+      <span i18n="lightning.nodes-per-isp">Lightning nodes per ISP</span>
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+        <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
+      </button>
+    </div>
+    <small style="color: #ffffff66" i18n="lightning.tor-nodes-excluded">(Tor nodes excluded)</small>
+  </div>
+
+  <div class="container pb-lg-0 bottom-padding">
+    <div class="pb-lg-5" *ngIf="nodesPerAsObservable$ | async">
+      <div class="chart w-100" echarts [initOpts]="chartInitOptions" [options]="chartOptions"
+        (chartInit)="onChartInit($event)">
+      </div>
+    </div>
+
+    <div class="text-center loadingGraphs" *ngIf="isLoading">
+      <div class="spinner-border text-light"></div>
+    </div>
+
+    <table class="table table-borderless text-center m-auto" style="max-width: 900px">
+      <thead>
+        <tr>
+          <th class="rank text-left pl-0" i18n="mining.rank">Rank</th>
+          <th class="name text-left" i18n="lightning.isp">ISP</th>
+          <th class="share text-right" i18n="lightning.share">Share</th>
+          <th class="nodes text-right" i18n="lightning.nodes-count">Nodes</th>
+          <th class="capacity text-right pr-0" i18n="lightning.capacity">Capacity</th>
+        </tr>
+      </thead>
+      <tbody [attr.data-cy]="'pools-table'" *ngIf="(nodesPerAsObservable$ | async) as asList">
+        <tr *ngFor="let asEntry of asList">
+          <td class="rank text-left pl-0">{{ asEntry.rank }}</td>
+          <td class="name text-left text-truncate"  style="max-width: 100px">
+          <a [routerLink]="[('/lightning/nodes/isp/' + asEntry.ispId) | relativeUrl]">{{ asEntry.name }}</a>
+          </td>
+          <td class="share text-right">{{ asEntry.share }}%</td>
+          <td class="nodes text-right">{{ asEntry.count }}</td>
+          <td class="capacity text-right pr-0"><app-amount [satoshis]="asEntry.capacity" [digitsInfo]="'1.2-2'" [noFiat]="true"></app-amount></td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+
+</div>

frontend/src/app/lightning/nodes-per-isp-chart/nodes-per-isp-chart.component.scss

@@ -0,0 +1,75 @@
+.card-header {
+  border-bottom: 0;
+  font-size: 18px;
+  @media (min-width: 465px) {
+    font-size: 20px;
+  }
+}
+
+.full-container {
+  padding: 0px 15px;
+  width: 100%;
+  height: calc(100% - 140px);
+  @media (max-width: 992px) {
+    height: calc(100% - 190px);
+  };
+  @media (max-width: 575px) {
+    height: calc(100% - 230px);
+  };
+}
+
+.chart {
+  max-height: 400px;
+  @media (max-width: 767.98px) {
+    max-height: 230px;
+    margin-top: -35px;
+  }
+}
+
+.bottom-padding {
+  @media (max-width: 992px) {
+    padding-bottom: 65px
+  };
+  @media (max-width: 576px) {
+    padding-bottom: 65px
+  };
+}
+
+.rank {
+  width: 20%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.name {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 80%;
+    max-width: 150px;
+    padding-left: 0;
+    padding-right: 0;
+  }
+}
+
+.share {
+  width: 20%;
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.nodes {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 10%;
+  }
+}
+
+.capacity {
+  width: 20%;
+  @media (max-width: 576px) {
+    width: 10%;
+    max-width: 100px;
+  }
+}

frontend/src/app/lightning/nodes-per-isp-chart/nodes-per-isp-chart.component.ts

@@ -0,0 +1,231 @@
+import { ChangeDetectionStrategy, Component, OnInit, HostBinding, NgZone } from '@angular/core';
+import { Router } from '@angular/router';
+import { EChartsOption, PieSeriesOption } from 'echarts';
+import { map, Observable, share, tap } from 'rxjs';
+import { chartColors } from 'src/app/app.constants';
+import { ApiService } from 'src/app/services/api.service';
+import { SeoService } from 'src/app/services/seo.service';
+import { StateService } from 'src/app/services/state.service';
+import { download } from 'src/app/shared/graphs.utils';
+import { AmountShortenerPipe } from 'src/app/shared/pipes/amount-shortener.pipe';
+import { RelativeUrlPipe } from 'src/app/shared/pipes/relative-url/relative-url.pipe';
+
+@Component({
+  selector: 'app-nodes-per-isp-chart',
+  templateUrl: './nodes-per-isp-chart.component.html',
+  styleUrls: ['./nodes-per-isp-chart.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodesPerISPChartComponent implements OnInit {
+  miningWindowPreference: string;
+
+  isLoading = true;
+  chartOptions: EChartsOption = {};
+  chartInitOptions = {
+    renderer: 'svg',
+  };
+  timespan = '';
+  chartInstance: any = undefined;
+
+  @HostBinding('attr.dir') dir = 'ltr';
+
+  nodesPerAsObservable$: Observable<any>;
+
+  constructor(
+    private apiService: ApiService,
+    private seoService: SeoService,
+    private amountShortenerPipe: AmountShortenerPipe,
+    private router: Router,
+    private zone: NgZone,
+    private stateService: StateService,
+  ) {
+  }
+
+  ngOnInit(): void {
+    this.seoService.setTitle($localize`Lightning nodes per ISP`);
+
+    this.nodesPerAsObservable$ = this.apiService.getNodesPerAs()
+      .pipe(
+        tap(data => {
+          this.isLoading = false;
+          this.prepareChartOptions(data);
+        }),
+        map(data => {
+          for (let i = 0; i < data.length; ++i) {
+            data[i].rank = i + 1;
+          }
+          return data.slice(0, 100);
+        }),
+        share()
+      );
+  }
+
+  generateChartSerieData(as) {
+    const shareThreshold = this.isMobile() ? 2 : 1;
+    const data: object[] = [];
+    let totalShareOther = 0;
+    let totalNodeOther = 0;
+
+    let edgeDistance: string | number = '10%';
+    if (this.isMobile()) {
+      edgeDistance = 0;
+    }
+
+    as.forEach((as) => {
+      if (as.share < shareThreshold) {
+        totalShareOther += as.share;
+        totalNodeOther += as.count;
+        return;
+      }
+      data.push({
+        value: as.share,
+        name: as.name + (this.isMobile() ? `` : ` (${as.share}%)`),
+        label: {
+          overflow: 'truncate',
+          color: '#b1b1b1',
+          alignTo: 'edge',
+          edgeDistance: edgeDistance,
+        },
+        tooltip: {
+          show: !this.isMobile(),
+          backgroundColor: 'rgba(17, 19, 31, 1)',
+          borderRadius: 4,
+          shadowColor: 'rgba(0, 0, 0, 0.5)',
+          textStyle: {
+            color: '#b1b1b1',
+          },
+          borderColor: '#000',
+          formatter: () => {
+            return `<b style="color: white">${as.name} (${as.share}%)</b><br>` +
+              $localize`${as.count.toString()} nodes<br>` +
+              $localize`${this.amountShortenerPipe.transform(as.capacity / 100000000, 2)} BTC capacity`
+            ;
+          }
+        },
+        data: as.ispId,
+      } as PieSeriesOption);
+    });
+
+    // 'Other'
+    data.push({
+      itemStyle: {
+        color: 'grey',
+      },
+      value: totalShareOther,
+      name: 'Other' + (this.isMobile() ? `` : ` (${totalShareOther.toFixed(2)}%)`),
+      label: {
+        overflow: 'truncate',
+        color: '#b1b1b1',
+        alignTo: 'edge',
+        edgeDistance: edgeDistance
+      },
+      tooltip: {
+        backgroundColor: 'rgba(17, 19, 31, 1)',
+        borderRadius: 4,
+        shadowColor: 'rgba(0, 0, 0, 0.5)',
+        textStyle: {
+          color: '#b1b1b1',
+        },
+        borderColor: '#000',
+        formatter: () => {
+          return `<b style="color: white">${'Other'} (${totalShareOther.toFixed(2)}%)</b><br>` +
+            totalNodeOther.toString() + ` nodes`;
+        }
+      },
+      data: 9999 as any,
+    } as PieSeriesOption);
+
+    return data;
+  }
+
+  prepareChartOptions(as) {
+    let pieSize = ['20%', '80%']; // Desktop
+    if (this.isMobile()) {
+      pieSize = ['15%', '60%'];
+    }
+
+    this.chartOptions = {
+      color: chartColors,
+      tooltip: {
+        trigger: 'item',
+        textStyle: {
+          align: 'left',
+        }
+      },
+      series: [
+        {
+          zlevel: 0,
+          minShowLabelAngle: 3.6,
+          name: 'Lightning nodes',
+          type: 'pie',
+          radius: pieSize,
+          data: this.generateChartSerieData(as),
+          labelLine: {
+            lineStyle: {
+              width: 2,
+            },
+            length: this.isMobile() ? 1 : 20,
+            length2: this.isMobile() ? 1 : undefined,
+          },
+          label: {
+            fontSize: 14,
+          },
+          itemStyle: {
+            borderRadius: 1,
+            borderWidth: 1,
+            borderColor: '#000',
+          },
+          emphasis: {
+            itemStyle: {
+              shadowBlur: 40,
+              shadowColor: 'rgba(0, 0, 0, 0.75)',
+            },
+            labelLine: {
+              lineStyle: {
+                width: 4,
+              }
+            }
+          }
+        }
+      ],
+    };
+  }
+
+  isMobile() {
+    return (window.innerWidth <= 767.98);
+  }
+
+  onChartInit(ec) {
+    if (this.chartInstance !== undefined) {
+      return;
+    }
+    this.chartInstance = ec;
+
+    this.chartInstance.on('click', (e) => {
+      if (e.data.data === 9999) { // "Other"
+        return;
+      }
+      this.zone.run(() => {
+        const url = new RelativeUrlPipe(this.stateService).transform(`/lightning/nodes/isp/${e.data.data}`);
+        this.router.navigate([url]);
+      });
+    });
+  }
+
+  onSaveChart() {
+    const now = new Date();
+    this.chartOptions.backgroundColor = '#11131f';
+    this.chartInstance.setOption(this.chartOptions);
+    download(this.chartInstance.getDataURL({
+      pixelRatio: 2,
+      excludeComponents: ['dataZoom'],
+    }), `ln-nodes-per-as-${this.timespan}-${Math.round(now.getTime() / 1000)}.svg`);
+    this.chartOptions.backgroundColor = 'none';
+    this.chartInstance.setOption(this.chartOptions);
+  }
+
+  isEllipsisActive(e) {
+    return (e.offsetWidth < e.scrollWidth);
+  }
+}
+

frontend/src/app/lightning/nodes-per-isp/nodes-per-isp.component.html

@@ -0,0 +1,42 @@
+<div class="container-xl full-height" style="min-height: 335px">
+  <h1 class="float-left" i18n="lightning.nodes-for-isp">Lightning nodes on ISP: {{ isp?.name }} [AS {{isp?.id}}]</h1>
+
+  <div style="min-height: 295px">
+    <table class="table table-borderless">
+      <thead>
+        <th class="alias text-left" i18n="lightning.alias">Alias</th>
+        <th class="timestamp-first text-left" i18n="lightning.first_seen">First seen</th>
+        <th class="timestamp-update text-left" i18n="lightning.last_update">Last update</th>
+        <th class="capacity text-right" i18n="lightning.capacity">Capacity</th>
+        <th class="channels text-right" i18n="lightning.channels">Channels</th>
+        <th class="city text-right" i18n="lightning.city">City</th>
+      </thead>
+      <tbody *ngIf="nodes$ | async as nodes">
+        <tr *ngFor="let node of nodes; let i= index; trackBy: trackByPublicKey">
+          <td class="alias text-left text-truncate">
+            <a [routerLink]="['/lightning/node/' | relativeUrl, node.public_key]">{{ node.alias }}</a>
+          </td>
+          <td class="timestamp-first text-left">
+            <app-timestamp [customFormat]="'yyyy-MM-dd'" [unixTime]="node.first_seen"></app-timestamp>
+          </td>
+          <td class="timestamp-update text-left">
+            <app-timestamp [customFormat]="'yyyy-MM-dd'" [unixTime]="node.updated_at"></app-timestamp>
+          </td>
+          <td class="capacity text-right">
+            <app-amount *ngIf="node.capacity > 100000000; else smallchannel" [satoshis]="node.capacity" [digitsInfo]="'1.2-2'" [noFiat]="true"></app-amount>
+            <ng-template #smallchannel>
+              {{ node.capacity | amountShortener: 1 }}
+              <span class="sats" i18n="shared.sats">sats</span>
+            </ng-template>
+          </td>
+          <td class="channels text-right">
+            {{ node.channels }}
+          </td>
+          <td class="city text-right text-truncate">
+            {{ node?.city?.en ?? '-' }}
+          </td>
+      </tbody>
+    </table>
+  </div>
+
+</div>

frontend/src/app/lightning/nodes-per-isp/nodes-per-isp.component.scss

@@ -0,0 +1,62 @@
+.container-xl {
+  max-width: 1400px;
+  padding-bottom: 100px;
+}
+
+.sats {
+  color: #ffffff66;
+  font-size: 12px;
+  top: 0px;
+}
+
+.alias {
+  width: 30%;
+  max-width: 400px;
+  padding-right: 70px;
+
+  @media (max-width: 576px) {
+    width: 50%;
+    max-width: 150px;
+    padding-right: 0px;
+  }
+}
+
+.timestamp-first {
+  width: 20%;
+
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.timestamp-update {
+  width: 16%;
+
+  @media (max-width: 576px) {
+    display: none
+  }
+}
+
+.capacity {
+  width: 10%;
+
+  @media (max-width: 576px) {
+    width: 25%;
+  }
+}
+
+.channels {
+  width: 10%;
+
+  @media (max-width: 576px) {
+    width: 25%;
+  }
+}
+
+.city {
+  max-width: 150px;
+
+  @media (max-width: 576px) {
+    display: none
+  }
+}

frontend/src/app/lightning/nodes-per-isp/nodes-per-isp.component.ts

@@ -0,0 +1,40 @@
+import { ChangeDetectionStrategy, Component, Input, OnInit } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { map, Observable } from 'rxjs';
+import { ApiService } from 'src/app/services/api.service';
+import { SeoService } from 'src/app/services/seo.service';
+
+@Component({
+  selector: 'app-nodes-per-isp',
+  templateUrl: './nodes-per-isp.component.html',
+  styleUrls: ['./nodes-per-isp.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class NodesPerISP implements OnInit {
+  nodes$: Observable<any>;
+  isp: {name: string, id: number};
+
+  constructor(
+    private apiService: ApiService,
+    private seoService: SeoService,
+    private route: ActivatedRoute,
+  ) { }
+
+  ngOnInit(): void {
+    this.nodes$ = this.apiService.getNodeForISP$(this.route.snapshot.params.isp)
+      .pipe(
+        map(response => {
+          this.isp = {
+            name: response.isp,
+            id: this.route.snapshot.params.isp
+          };
+          this.seoService.setTitle($localize`Lightning nodes on ISP: ${response.isp} [AS${this.route.snapshot.params.isp}]`);
+          return response.nodes;
+        })
+      );
+  }
+
+  trackByPublicKey(index: number, node: any) {
+    return node.public_key;
+  }
+}

frontend/src/app/lightning/statistics-chart/lightning-statistics-chart.component.html

@@ -1,10 +1,12 @@
 <div [class]="widget === false ? 'full-container' : ''">
 
   <div class="card-header mb-0 mb-md-4" [style]="widget ? 'display:none' : ''">
-    <span i18n="mining.hashrate-difficulty">Hashrate & Difficulty</span>
+    <div class="d-flex d-md-block align-items-baseline">
-    <button class="btn" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
+      <span i18n="mining.channels-and-capacity">Channels & Capacity</span>
+      <button class="btn p-0 pl-2" style="margin: 0 0 4px 0px" (click)="onSaveChart()">
         <fa-icon [icon]="['fas', 'download']" [fixedWidth]="true"></fa-icon>
       </button>
+    </div>
 
     <form [formGroup]="radioGroupForm" class="formRadioGroup" *ngIf="(capacityObservable$ | async) as stats">
       <div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" formControlName="dateSpan">

frontend/src/app/services/api.service.ts

@@ -228,6 +228,12 @@ export class ApiService {
     );
   }
 
+  getBlockAudit$(hash: string) : Observable<any> {
+    return this.httpClient.get<any>(
+      this.apiBaseUrl + this.apiBasePath + `/api/v1/mining/blocks/audit/` + hash, { observe: 'response' }
+    );
+  }
+
   getRewardStats$(blockCount: number = 144): Observable<RewardStats> {
     return this.httpClient.get<RewardStats>(this.apiBaseUrl + this.apiBasePath + `/api/v1/mining/reward-stats/${blockCount}`);
   }
@@ -245,4 +251,19 @@ export class ApiService {
     return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/lightning/search', { params });
   }
 
+  getNodesPerAs(): Observable<any> {
+    return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/lightning/nodes/isp');
+  }
+
+  getNodeForCountry$(country: string): Observable<any> {
+    return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/lightning/nodes/country/' + country);
+  }
+
+  getNodeForISP$(isp: string): Observable<any> {
+    return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/lightning/nodes/isp/' + isp);
+  }
+
+  getNodesPerCountry(): Observable<any> {
+    return this.httpClient.get<any[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/lightning/nodes/countries');
+  }
 }

frontend/src/app/shared/components/timestamp/timestamp.component.html

@@ -1,4 +1,4 @@
-‎{{ seconds * 1000 | date:'yyyy-MM-dd HH:mm' }}
+‎{{ seconds * 1000 | date: customFormat ?? 'yyyy-MM-dd HH:mm' }}
 <div class="lg-inline">
   <i class="symbol">(<app-time-since [time]="seconds" [fastRender]="true"></app-time-since>)</i>
 </div>

frontend/src/app/shared/components/timestamp/timestamp.component.ts

@@ -9,6 +9,7 @@ import { ChangeDetectionStrategy, Component, Input, OnChanges } from '@angular/c
 export class TimestampComponent implements OnChanges {
   @Input() unixTime: number;
   @Input() dateString: string;
+  @Input() customFormat: string;
 
   seconds: number;
 

frontend/src/app/shared/graphs.utils.ts

@@ -84,3 +84,17 @@ export const download = (href, name) => {
   a.click();
   document.body.removeChild(a);
 };
+
+export function detectWebGL() {
+  const canvas = document.createElement('canvas');
+  const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
+  return (gl && gl instanceof WebGLRenderingContext);
+}
+
+export function getFlagEmoji(countryCode) {
+  const codePoints = countryCode
+    .toUpperCase()
+    .split('')
+    .map(char =>  127397 + char.charCodeAt());
+  return String.fromCodePoint(...codePoints);
+}

frontend/src/app/shared/shared.module.ts

@@ -44,6 +44,7 @@ import { StartComponent } from '../components/start/start.component';
 import { TransactionComponent } from '../components/transaction/transaction.component';
 import { TransactionsListComponent } from '../components/transactions-list/transactions-list.component';
 import { BlockComponent } from '../components/block/block.component';
+import { BlockAuditComponent } from '../components/block-audit/block-audit.component';
 import { BlockOverviewGraphComponent } from '../components/block-overview-graph/block-overview-graph.component';
 import { BlockOverviewTooltipComponent } from '../components/block-overview-tooltip/block-overview-tooltip.component';
 import { AddressComponent } from '../components/address/address.component';
@@ -114,6 +115,7 @@ import { TimestampComponent } from './components/timestamp/timestamp.component';
     StartComponent,
     TransactionComponent,
     BlockComponent,
+    BlockAuditComponent,
     BlockOverviewGraphComponent,
     BlockOverviewTooltipComponent,
     TransactionsListComponent,
@@ -213,6 +215,7 @@ import { TimestampComponent } from './components/timestamp/timestamp.component';
     StartComponent,
     TransactionComponent,
     BlockComponent,
+    BlockAuditComponent,
     BlockOverviewGraphComponent,
     BlockOverviewTooltipComponent,
     TransactionsListComponent,