Add support for regtest

backend/src/api/bitcoin/bitcoin.routes.ts

@@ -483,7 +483,7 @@ class BitcoinRoutes {
 
   private async getBlocks(req: Request, res: Response) {
     try {
-      if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
+      if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
         const height = req.params.height === undefined ? undefined : parseInt(req.params.height, 10);
         res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
         res.json(await blocks.$getBlocks(height, 15));
@@ -497,7 +497,7 @@ class BitcoinRoutes {
 
   private async getBlocksByBulk(req: Request, res: Response) {
     try {
-      if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) === false) { // Liquid - Not implemented
+      if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) === false) { // Liquid - Not implemented
         handleError(req, res, 404, `This API is only available for Bitcoin networks`);
         return;
       }
@@ -539,7 +539,7 @@ class BitcoinRoutes {
 
   private async getChainTips(req: Request, res: Response) {
     try {
-      if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
+      if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
         res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
         const tips = await chainTips.getChainTips();
         if (tips.length > 0) {
@@ -559,7 +559,7 @@ class BitcoinRoutes {
 
   private async getStaleTips(req: Request, res: Response) {
     try {
-      if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
+      if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) { // Bitcoin
         res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
         const tips = await chainTips.getStaleTips();
         if (tips.length > 0) {

backend/src/api/blocks.ts

@@ -327,7 +327,7 @@ class Blocks {
       extras.totalInputAmt = null;
     }
 
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
       let pool: PoolTag;
       if (coinbaseTx !== undefined) {
         pool = await this.$findBlockMiner(coinbaseTx);
@@ -1282,7 +1282,7 @@ class Blocks {
     }
 
     // Not Bitcoin network, return the block as it from the bitcoin backend
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) === false) {
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) === false) {
       return await bitcoinCoreApi.$getBlock(hash);
     }
 
@@ -1525,7 +1525,7 @@ class Blocks {
   }
 
   public async $getBlockAuditSummary(hash: string): Promise<BlockAudit | null> {
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) && Common.auditIndexingEnabled()) {
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) && Common.auditIndexingEnabled()) {
       return BlocksAuditsRepository.$getBlockAudit(hash);
     } else {
       return null;
@@ -1533,7 +1533,7 @@ class Blocks {
   }
 
   public async $getBlockTxAuditSummary(hash: string, txid: string): Promise<TransactionAudit | null> {
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) && Common.auditIndexingEnabled()) {
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) && Common.auditIndexingEnabled()) {
       return BlocksAuditsRepository.$getBlockTxAudit(hash, txid);
     } else {
       return null;

backend/src/api/common.ts

@@ -376,6 +376,7 @@ export class Common {
     'testnet4': 42_000,
     'testnet': 2_900_000,
     'signet': 211_000,
+    'regtest': 0,
     '': 863_500,
   };
   static isNonStandardVersion(tx: TransactionExtended, height?: number): boolean {
@@ -399,6 +400,7 @@ export class Common {
     'testnet4': 42_000,
     'testnet': 2_900_000,
     'signet': 211_000,
+    'regtest': 0,
     '': 863_500,
   };
   static isNonStandardAnchor(vin: IEsploraApi.Vin, height?: number): boolean {
@@ -419,6 +421,7 @@ export class Common {
     'testnet4': 90_500,
     'testnet': 4_550_000,
     'signet': 260_000,
+    'regtest': 0,
     '': 905_000,
   };
   static isStandardEphemeralDust(tx: TransactionExtended, height?: number): boolean {
@@ -439,6 +442,7 @@ export class Common {
     'testnet4': 108_000,
     'testnet': 4_750_000,
     'signet': 276_500,
+    'regtest': 0,
     '': 921_000,
   };
   static MAX_DATACARRIER_BYTES = 83;
@@ -461,6 +465,7 @@ export class Common {
     'testnet4': 108_000,
     'testnet': 4_750_000,
     'signet': 276_500,
+    'regtest': 0,
     '': 921_000,
   };
   static isNonStandardLegacySigops(tx: TransactionExtended, height?: number): boolean {
@@ -854,7 +859,7 @@ export class Common {
 
   static indexingEnabled(): boolean {
     return (
-      ['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) &&
+      ['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) &&
       config.DATABASE.ENABLED === true &&
       config.MEMPOOL.INDEXING_BLOCKS_AMOUNT !== 0
     );

backend/src/api/database-migration.ts

@@ -104,7 +104,7 @@ class DatabaseMigration {
   private async $createMissingTablesAndIndexes(databaseSchemaVersion: number) {
     await this.$setStatisticsAddedIndexedFlag(databaseSchemaVersion);
 
-    const isBitcoin = ['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK);
+    const isBitcoin = ['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK);
 
     await this.$executeQuery(this.getCreateElementsTableQuery(), await this.$checkIfTableExists('elements_pegs'));
     await this.$executeQuery(this.getCreateStatisticsQuery(), await this.$checkIfTableExists('statistics'));
@@ -1300,7 +1300,7 @@ class DatabaseMigration {
    */
   private getMigrationQueriesFromVersion(version: number): string[] {
     const queries: string[] = [];
-    const isBitcoin = ['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK);
+    const isBitcoin = ['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK);
 
     if (version < 1) {
       if (config.MEMPOOL.NETWORK !== 'liquid' && config.MEMPOOL.NETWORK !== 'liquidtestnet') {

backend/src/api/liquid/liquid.routes.ts

@@ -262,7 +262,7 @@ class LiquidRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
-      if (['testnet', 'signet', 'liquidtestnet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (['testnet', 'signet', 'liquidtestnet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Prices are not available on testnets.');
         return;
       }

backend/src/api/mempool-blocks.ts

@@ -46,7 +46,7 @@ class MempoolBlocks {
   }
 
   public async updatePools$(): Promise<void> {
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) === false) {
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) === false) {
       this.pools = {};
       return;
     }

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

@@ -53,7 +53,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
-      if (['testnet', 'signet', 'liquidtestnet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (['testnet', 'signet', 'liquidtestnet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Prices are not available on testnets.');
         return;
       }
@@ -394,7 +394,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
-      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
@@ -409,7 +409,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
-      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
@@ -425,7 +425,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
-      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
@@ -440,7 +440,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
-      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
@@ -455,7 +455,7 @@ class MiningRoutes {
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
-      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }

backend/src/api/pools-parser.ts

@@ -195,7 +195,7 @@ class PoolsParser {
     let firstKnownBlockPool = 130635; // https://mempool.space/block/0000000000000a067d94ff753eec72830f1205ad3a4c216a08a80c832e551a52
     if (config.MEMPOOL.NETWORK === 'testnet') {
       firstKnownBlockPool = 21106; // https://mempool.space/testnet/block/0000000070b701a5b6a1b965f6a38e0472e70b2bb31b973e4638dec400877581
-    } else if (['signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+    } else if (['signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
       firstKnownBlockPool = 0;
     }
 

backend/src/config.ts

@@ -6,7 +6,7 @@ interface IConfig {
   MEMPOOL: {
     ENABLED: boolean;
     OFFICIAL: boolean;
-    NETWORK: 'mainnet' | 'testnet' | 'signet' | 'liquid' | 'liquidtestnet';
+    NETWORK: 'mainnet' | 'testnet' | 'signet' | 'liquid' | 'liquidtestnet' | 'regtest';
     BACKEND: 'esplora' | 'electrum' | 'none';
     HTTP_PORT: number;
     UNIX_SOCKET_PATH: string;

backend/src/index.ts

@@ -161,7 +161,7 @@ class Server {
     this.setUpWebsocketHandling();
 
     await poolsUpdater.updatePoolsJson(); // Needs to be done before loading the disk cache because we sometimes wipe it
-    if (config.DATABASE.ENABLED === true && config.MEMPOOL.ENABLED && ['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) && !poolsUpdater.currentSha) {
+    if (config.DATABASE.ENABLED === true && config.MEMPOOL.ENABLED && ['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) && !poolsUpdater.currentSha) {
       logger.err(`Failed to retreive pools-v2.json sha, cannot run block indexing. Please make sure you've set valid urls in your mempool-config.json::MEMPOOL::POOLS_JSON_URL and mempool-config.json::MEMPOOL::POOLS_JSON_TREE_UR, aborting now`);
       return process.exit(1);
     }

backend/src/indexer.ts

@@ -134,7 +134,7 @@ class Indexer {
 
     switch (task) {
       case 'blocksPrices': {
-        if (!['testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) && config.FIAT_PRICE.ENABLED) {
+        if (!['testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) && config.FIAT_PRICE.ENABLED) {
           let lastestPriceId;
           try {
             lastestPriceId = await PricesRepository.$getLatestPriceId();

backend/src/repositories/PoolsRepository.ts

@@ -102,7 +102,7 @@ class PoolsRepository {
       if (parse) {
         rows[0].regexes = JSON.parse(rows[0].regexes);
       }
-      if (['testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (['testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         rows[0].addresses = []; // pools-v2.json only contains mainnet addresses
       } else if (parse) {
         rows[0].addresses = JSON.parse(rows[0].addresses);
@@ -134,7 +134,7 @@ class PoolsRepository {
       if (parse) {
         rows[0].regexes = JSON.parse(rows[0].regexes);
       }
-      if (['testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+      if (['testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
         rows[0].addresses = []; // pools.json only contains mainnet addresses
       } else if (parse) {
         rows[0].addresses = JSON.parse(rows[0].addresses);

backend/src/tasks/pools-updater.ts

@@ -31,7 +31,7 @@ class PoolsUpdater {
   }
 
   public async updatePoolsJson(): Promise<void> {
-    if (['mainnet', 'testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK) === false ||
+    if (['mainnet', 'testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK) === false ||
       config.MEMPOOL.ENABLED === false
     ) {
       return;

backend/src/tasks/price-updater.ts

@@ -134,7 +134,7 @@ class PriceUpdater {
   }
 
   public async $run(): Promise<void> {
-    if (['testnet', 'signet', 'testnet4'].includes(config.MEMPOOL.NETWORK)) {
+    if (['testnet', 'signet', 'testnet4', 'regtest'].includes(config.MEMPOOL.NETWORK)) {
       // Coins have no value on testnet/signet, so we want to always show 0
       return;
     }

docker/frontend/entrypoint.sh

@@ -27,6 +27,7 @@ __MAINNET_ENABLED__=${MAINNET_ENABLED:=true}
 __TESTNET_ENABLED__=${TESTNET_ENABLED:=false}
 __TESTNET4_ENABLED__=${TESTNET_ENABLED:=false}
 __SIGNET_ENABLED__=${SIGNET_ENABLED:=false}
+__REGTEST_ENABLED__=${REGTEST_ENABLED:=false}
 __LIQUID_ENABLED__=${LIQUID_ENABLED:=false}
 __LIQUID_TESTNET_ENABLED__=${LIQUID_TESTNET_ENABLED:=false}
 __ITEMS_PER_PAGE__=${ITEMS_PER_PAGE:=10}
@@ -46,6 +47,7 @@ __AUDIT__=${AUDIT:=false}
 __MAINNET_BLOCK_AUDIT_START_HEIGHT__=${MAINNET_BLOCK_AUDIT_START_HEIGHT:=0}
 __TESTNET_BLOCK_AUDIT_START_HEIGHT__=${TESTNET_BLOCK_AUDIT_START_HEIGHT:=0}
 __SIGNET_BLOCK_AUDIT_START_HEIGHT__=${SIGNET_BLOCK_AUDIT_START_HEIGHT:=0}
+__REGTEST_BLOCK_AUDIT_START_HEIGHT__=${REGTEST_BLOCK_AUDIT_START_HEIGHT:=0}
 __ACCELERATOR__=${ACCELERATOR:=false}
 __ACCELERATOR_BUTTON__=${ACCELERATOR_BUTTON:=true}
 __SERVICES_API__=${SERVICES_API:=https://mempool.space/api/v1/services}
@@ -59,6 +61,7 @@ export __MAINNET_ENABLED__
 export __TESTNET_ENABLED__
 export __TESTNET4_ENABLED__
 export __SIGNET_ENABLED__
+export __REGTEST_ENABLED__
 export __LIQUID_ENABLED__
 export __LIQUID_TESTNET_ENABLED__
 export __ITEMS_PER_PAGE__
@@ -78,6 +81,7 @@ export __AUDIT__
 export __MAINNET_BLOCK_AUDIT_START_HEIGHT__
 export __TESTNET_BLOCK_AUDIT_START_HEIGHT__
 export __SIGNET_BLOCK_AUDIT_START_HEIGHT__
+export __REGTEST_BLOCK_AUDIT_START_HEIGHT__
 export __ACCELERATOR__
 export __ACCELERATOR_BUTTON__
 export __SERVICES_API__

frontend/mempool-frontend-config.sample.json

@@ -2,6 +2,7 @@
   "TESTNET_ENABLED": false,
   "TESTNET4_ENABLED": false,
   "SIGNET_ENABLED": false,
+  "REGTEST_ENABLED": false,
   "LIQUID_ENABLED": false,
   "LIQUID_TESTNET_ENABLED": false,
   "MAINNET_ENABLED": true,
@@ -21,6 +22,7 @@
   "MAINNET_BLOCK_AUDIT_START_HEIGHT": 0,
   "TESTNET_BLOCK_AUDIT_START_HEIGHT": 0,
   "SIGNET_BLOCK_AUDIT_START_HEIGHT": 0,
+  "REGTEST_BLOCK_AUDIT_START_HEIGHT": 0,
   "LIGHTNING": false,
   "HISTORICAL_PRICE": true,
   "ADDITIONAL_CURRENCIES": false,

frontend/proxy.conf.js

@@ -24,7 +24,7 @@ PROXY_CONFIG = [
         '/api/**', '!/api/v1/ws',
         '!/liquid', '!/liquid/**', '!/liquid/',
         '!/liquidtestnet', '!/liquidtestnet/**', '!/liquidtestnet/',
-        '/testnet/api/**', '/signet/api/**', '/testnet4/api/**'
+        '/testnet/api/**', '/signet/api/**', '/testnet4/api/**', '/regtest/api/**'
         ],
         target: "https://mempool.space",
         ws: true,

frontend/proxy.conf.local-esplora.js

@@ -78,6 +78,27 @@ PROXY_CONFIG.push(...[
         "^/testnet": ""
     },
   },
+  {
+    context: ['/regtest/api/v1/**'],
+    target: `http://127.0.0.1:8999`,
+    secure: false,
+    ws: true,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest": ""
+    },
+  },
+  {
+    context: ['/regtest/api/**'],
+    target: `http://127.0.0.1:3000`,
+    secure: false,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest/api": ""
+    },
+  },
   /* Optional proxy to route dev to official acceleration services
   {
     context: ['/api/v1/services/accelerator/**'],

frontend/proxy.conf.local.js

@@ -78,6 +78,27 @@ PROXY_CONFIG.push(...[
         "^/testnet": ""
     },
   },
+  {
+    context: ['/regtest/api/v1/**'],
+    target: `http://localhost:8999`,
+    secure: false,
+    ws: true,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest": ""
+    },
+  },
+  {
+    context: ['/regtest/api/**'],
+    target: `http://localhost:8999`,
+    secure: false,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest/api/": "/api/v1/"
+    },
+  },
   {
     context: ['/api/v1/services/**'],
     target: `http://localhost:9000`,

frontend/proxy.conf.mixed.js

@@ -62,6 +62,27 @@ if (configContent && configContent.BASE_MODULE === 'liquid') {
 }
 
 PROXY_CONFIG.push(...[
+  {
+    context: ['/regtest/api/v1/**'],
+    target: `http://localhost:8999`,
+    secure: false,
+    ws: true,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest": ""
+    },
+  },
+  {
+    context: ['/regtest/api/**'],
+    target: `http://localhost:8999`,
+    secure: false,
+    changeOrigin: true,
+    proxyTimeout: 30000,
+    pathRewrite: {
+        "^/regtest/api/": "/api/v1/"
+    },
+  },
   {
     context: ['/api/v1/services/**'],
     target: `http://localhost:9000`,

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

@@ -133,6 +133,49 @@ let routes: Routes = [
       },
     ]
   },
+  {
+    path: 'regtest',
+    children: [
+      {
+        path: 'mining/blocks',
+        redirectTo: 'blocks',
+        pathMatch: 'full'
+      },
+      {
+        path: '',
+        pathMatch: 'full',
+        loadChildren: () => import('@app/bitcoin-graphs.module').then(m => m.BitcoinGraphsModule),
+        data: { preload: true },
+      },
+      {
+        path: '',
+        loadChildren: () => import('@app/master-page.module').then(m => m.MasterPageModule),
+        data: { preload: true },
+      },
+      {
+        path: 'widget/wallet',
+        children: [],
+        component: AddressGroupComponent,
+        data: {
+          networkSpecific: true,
+        }
+      },
+      {
+        path: 'status',
+        data: { networks: ['bitcoin', 'liquid'] },
+        component: StatusViewComponent
+      },
+      {
+        path: '',
+        loadChildren: () => import('@app/bitcoin-graphs.module').then(m => m.BitcoinGraphsModule),
+        data: { preload: true },
+      },
+      {
+        path: '**',
+        redirectTo: '/regtest'
+      },
+    ]
+  },
   {
     path: '',
     pathMatch: 'full',
@@ -177,6 +220,10 @@ let routes: Routes = [
         path: 'signet',
         loadChildren: () => import('@app/previews.module').then(m => m.PreviewsModule)
       },
+      {
+        path: 'regtest',
+        loadChildren: () => import('@app/previews.module').then(m => m.PreviewsModule)
+      },
     ],
   },
   {

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.ts

@@ -73,6 +73,7 @@ export class BlockchainBlocksComponent implements OnInit, OnChanges, OnDestroy {
     testnet: ['var(--testnet)', 'var(--testnet-alt)'],
     testnet4: ['var(--testnet)', 'var(--testnet-alt)'],
     signet: ['var(--signet)', 'var(--signet-alt)'],
+    regtest: ['var(--regtest)', 'var(--regtest-alt)'],
   };
 
   constructor(

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

@@ -39,6 +39,7 @@ export class ClockComponent implements OnInit {
     testnet: ['var(--testnet)', 'var(--testnet-alt)'],
     testnet4: ['var(--testnet)', 'var(--testnet-alt)'],
     signet: ['var(--signet)', 'var(--signet-alt)'],
+    regtest: ['var(--regtest)', 'var(--regtest-alt)'],
   };
 
   constructor(

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

@@ -44,7 +44,7 @@
     </ng-container>
   </a>
 
-  <div ngbDropdown (window:resize)="onResize()" class="dropdown-container" *ngIf="env.TESTNET_ENABLED || env.SIGNET_ENABLED || env.LIQUID_ENABLED || env.LIQUID_TESTNET_ENABLED">
+  <div ngbDropdown (window:resize)="onResize()" class="dropdown-container" *ngIf="env.TESTNET_ENABLED || env.SIGNET_ENABLED || env.REGTEST_ENABLED || env.LIQUID_ENABLED || env.LIQUID_TESTNET_ENABLED">
     <button ngbDropdownToggle type="button" class="btn btn-secondary dropdown-toggle-split d-flex justify-content-center align-items-center" aria-haspopup="true">
       <app-svg-images class="d-flex justify-content-center align-items-center current-network-svg" [name]="network.val === '' ? 'liquid' : network.val" width="20" height="20" viewBox="0 0 125 125"></app-svg-images>
     </button>
@@ -53,6 +53,7 @@
       <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['signet'] || '/signet')" ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet"><app-svg-images name="signet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Signet</a>
       <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['testnet'] || '/testnet')" ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet"><app-svg-images name="testnet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet3</a>
       <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['testnet4'] || '/testnet4')" ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4</a>
+      <a [href]="env.MEMPOOL_WEBSITE_URL + urlLanguage + (networkPaths['regtest'] || '/regtest')" ngbDropdownItem *ngIf="env.REGTEST_ENABLED" class="regtest"><app-svg-images name="regtest" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Regtest</a>
       <h6 class="dropdown-header" i18n="master-page.layer2-networks-header">Layer 2 Networks</h6>
       <a ngbDropdownItem class="liquid mr-1" [class.active]="network.val === 'liquid'" [routerLink]="networkPaths['liquid'] || '/'"><app-svg-images name="liquid" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid</a>
       <a ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquidtestnet'" [routerLink]="networkPaths['liquidtestnet'] || '/testnet'"><app-svg-images name="liquidtestnet" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid Testnet</a>

frontend/src/app/components/liquid-master-page/liquid-master-page.component.scss

@@ -157,6 +157,10 @@ nav {
   background-color: var(--signet);
 }
 
+.regtest.active {
+  background-color: var(--regtest);
+}
+
 .dropdown-divider {
   border-top: 1px solid #121420;
 }

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

@@ -66,6 +66,7 @@
       <a ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet" [class.active]="network.val === 'signet'" [routerLink]="networkPaths['signet'] || '/signet'"><app-svg-images name="signet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Signet</a>
       <a ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet" [class.active]="network.val === 'testnet'" [routerLink]="networkPaths['testnet'] || '/testnet'"><app-svg-images name="testnet" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet3</a>
       <a ngbDropdownItem *ngIf="env.TESTNET4_ENABLED" class="testnet4" [class.active]="network.val === 'testnet4'" [routerLink]="networkPaths['testnet4'] || '/testnet4'"><app-svg-images name="testnet4" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Testnet4</a>
+      <a ngbDropdownItem *ngIf="env.REGTEST_ENABLED" class="regtest" [class.active]="network.val === 'regtest'" [routerLink]="networkPaths['regtest'] || '/regtest'"><app-svg-images name="regtest" width="22" height="22" viewBox="0 0 65 65" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Regtest</a>
       <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage + (networkPaths['liquid'] || '')" ngbDropdownItem *ngIf="env.LIQUID_ENABLED" class="liquid" [class.active]="network.val === 'liquid'"><app-svg-images name="liquid" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid</a>
       <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage  + (networkPaths['liquidtestnet'] || '/testnet')" ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquid'"><app-svg-images name="liquidtestnet" width="22" height="22" viewBox="0 0 125 125" style="width: 25px; height: 25px;" class="mainnet mr-1"></app-svg-images> Liquid Testnet</a>
     </div>

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

@@ -175,6 +175,10 @@ nav {
   background-color: var(--signet);
 }
 
+.regtest.active {
+  background-color: var(--regtest);
+}
+
 .dropdown-divider {
   border-top: 1px solid #121420;
 }

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

@@ -85,6 +85,7 @@ export class MasterPageComponent implements OnInit, OnDestroy {
       this.env.TESTNET_ENABLED,
       this.env.TESTNET4_ENABLED,
       this.env.SIGNET_ENABLED,
+      this.env.REGTEST_ENABLED,
       this.env.LIQUID_ENABLED,
       this.env.LIQUID_TESTNET_ENABLED,
       this.env.MAINNET_ENABLED,

frontend/src/app/components/stale-list/stale-list.component.ts

@@ -27,6 +27,7 @@ export class StaleList implements OnInit {
     testnet: ['var(--testnet)', 'var(--testnet-alt)'],
     testnet4: ['var(--testnet)', 'var(--testnet-alt)'],
     signet: ['var(--signet)', 'var(--signet-alt)'],
+    regtest: ['var(--regtest)', 'var(--regtest-alt)'],
   };
 
   constructor(

frontend/src/app/components/svg-images/svg-images.component.html

@@ -184,6 +184,9 @@
   <ng-container *ngSwitchCase="'testnet4'">
     <ng-component *ngTemplateOutlet="bitcoinLogo; context: {$implicit: '#5fd15c', width, height, viewBox}"></ng-component>
   </ng-container>
+  <ng-container *ngSwitchCase="'regtest'">
+    <ng-component *ngTemplateOutlet="bitcoinLogo; context: {$implicit: '#a5a5a5', width, height, viewBox}"></ng-component>
+  </ng-container>
   <ng-container *ngSwitchCase="'liquid'">
     <ng-component *ngTemplateOutlet="liquidLogo; context: {$implicit: '', width, height, viewBox}"></ng-component>
   </ng-container>

frontend/src/app/components/tx-bowtie-graph/tx-bowtie-graph.component.ts

@@ -95,6 +95,7 @@ export class TxBowtieGraphComponent implements OnInit, OnChanges {
     testnet4: ['#4edf77', '#10a0af', '#4edf7700'],
     // signet: ['#6f1d5d', '#471850'],
     signet: ['#d24fc8', '#a84fd2', '#d24fc800'],
+    regtest: ['var(--regtest)', 'var(--regtest-alt)', '#7d7d7d00'],
   };
 
   gradient: string[] = ['var(--primary)', 'var(--primary)'];

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

@@ -45,6 +45,7 @@ export class EnterpriseService {
     this.stateService.env.LIQUID_ENABLED = false;
     this.stateService.env.LIQUID_TESTNET_ENABLED = false;
     this.stateService.env.SIGNET_ENABLED = false;
+    this.stateService.env.REGTEST_ENABLED = false;
   }
 
   fetchSubdomainInfo(): void {

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

@@ -17,6 +17,7 @@ export class NavigationService {
         { name: 'testnet', path: this.stateService.env.ROOT_NETWORK === 'testnet' ? '/' : '/testnet' },
         { name: 'testnet4', path: this.stateService.env.ROOT_NETWORK === 'testnet4' ? '/' : '/testnet4' },
         { name: 'signet', path: this.stateService.env.ROOT_NETWORK === 'signet' ? '/' : '/signet' },
+        { name: 'regtest', path: this.stateService.env.ROOT_NETWORK === 'regtest' ? '/' : '/regtest' },
       ],
     },
     liquid: {
@@ -89,7 +90,7 @@ export class NavigationService {
       }
       if (route.url?.length) {
         path = [path, ...route.url.map(segment => segment.path).filter(path => {
-          return path.length && !['testnet', 'testnet4', 'signet'].includes(path);
+          return path.length && !['testnet', 'testnet4', 'signet', 'regtest'].includes(path);
         })].join('/');
       }
       route = route.firstChild;

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

@@ -50,6 +50,7 @@ export interface Env {
   TESTNET_ENABLED: boolean;
   TESTNET4_ENABLED: boolean;
   SIGNET_ENABLED: boolean;
+  REGTEST_ENABLED: boolean;
   LIQUID_ENABLED: boolean;
   LIQUID_TESTNET_ENABLED: boolean;
   ITEMS_PER_PAGE: number;
@@ -73,10 +74,12 @@ export interface Env {
   TESTNET_BLOCK_AUDIT_START_HEIGHT: number;
   TESTNET4_BLOCK_AUDIT_START_HEIGHT: number;
   SIGNET_BLOCK_AUDIT_START_HEIGHT: number;
+  REGTEST_BLOCK_AUDIT_START_HEIGHT: number;
   MAINNET_TX_FIRST_SEEN_START_HEIGHT: number;
   TESTNET_TX_FIRST_SEEN_START_HEIGHT: number;
   TESTNET4_TX_FIRST_SEEN_START_HEIGHT: number;
   SIGNET_TX_FIRST_SEEN_START_HEIGHT: number;
+  REGTEST_TX_FIRST_SEEN_START_HEIGHT: number;
   HISTORICAL_PRICE: boolean;
   ACCELERATOR: boolean;
   ACCELERATOR_BUTTON: boolean;
@@ -95,6 +98,7 @@ const defaultEnv: Env = {
   'TESTNET_ENABLED': false,
   'TESTNET4_ENABLED': false,
   'SIGNET_ENABLED': false,
+  'REGTEST_ENABLED': false,
   'LIQUID_ENABLED': false,
   'LIQUID_TESTNET_ENABLED': false,
   'BASE_MODULE': 'mempool',
@@ -118,10 +122,12 @@ const defaultEnv: Env = {
   'TESTNET_BLOCK_AUDIT_START_HEIGHT': 0,
   'TESTNET4_BLOCK_AUDIT_START_HEIGHT': 0,
   'SIGNET_BLOCK_AUDIT_START_HEIGHT': 0,
+  'REGTEST_BLOCK_AUDIT_START_HEIGHT': 0,
   'MAINNET_TX_FIRST_SEEN_START_HEIGHT': 0,
   'TESTNET_TX_FIRST_SEEN_START_HEIGHT': 0,
   'TESTNET4_TX_FIRST_SEEN_START_HEIGHT': 0,
   'SIGNET_TX_FIRST_SEEN_START_HEIGHT': 0,
+  'REGTEST_TX_FIRST_SEEN_START_HEIGHT': 0,
   'HISTORICAL_PRICE': true,
   'ACCELERATOR': false,
   'ACCELERATOR_BUTTON': true,
@@ -399,7 +405,7 @@ export class StateService {
     // (?:preview\/)?                               optional "preview" prefix (non-capturing)
     // (testnet|signet)/                            network string (captured as networkMatches[1])
     // ($|\/)                                       network string must end or end with a slash
-    let networkMatches: object = url.match(/^\/(?:[a-z]{2}(?:-[A-Z]{2})?\/)?(?:preview\/)?(testnet4?|signet)($|\/)/);
+    let networkMatches: object = url.match(/^\/(?:[a-z]{2}(?:-[A-Z]{2})?\/)?(?:preview\/)?(testnet4?|signet|regtest)($|\/)/);
 
     if (!networkMatches && this.env.ROOT_NETWORK) {
       networkMatches = { 1: this.env.ROOT_NETWORK };
@@ -429,6 +435,12 @@ export class StateService {
           this.networkChanged$.next('testnet4');
         }
         return;
+      case 'regtest':
+        if (this.network !== 'regtest') {
+          this.network = 'regtest';
+          this.networkChanged$.next('regtest');
+        }
+        return;
       default:
         if (this.env.BASE_MODULE !== 'mempool') {
           if (this.network !== this.env.BASE_MODULE) {

frontend/src/app/shared/address-utils.ts

@@ -50,6 +50,13 @@ const ADDRESS_PREFIXES = {
     },
     bech32: 'tb1',
   },
+  regtest: {
+    base58: {
+      pubkey: ['m', 'n'],
+      script: '2',
+    },
+    bech32: 'bcrt1',
+  },
   liquid: {
     base58: {
       pubkey: ['P','Q'],

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

@@ -154,7 +154,7 @@ export function nextRoundNumber(num: number): number {
 export function seoDescriptionNetwork(network: string): string {
   if( network === 'liquidtestnet' || network === 'testnet' ) {
     return ' Testnet';
-  } else if( network === 'signet' || network === 'testnet' || network === 'testnet4') {
+  } else if( network === 'signet' || network === 'testnet' || network === 'testnet4' || network === 'regtest') {
     return ' ' + network.charAt(0).toUpperCase() + network.slice(1);
   }
   return '';

frontend/src/app/shared/components/global-footer/global-footer.component.html

@@ -91,12 +91,13 @@
           <p *ngIf="mempoolSpaceBuild"><a [routerLink]="['/research' | relativeUrl]" i18n="mempool-research">Research</a></p>
         </div>
 
-        <div class="links" *ngIf="officialMempoolSpace || env.TESTNET_ENABLED || env.TESTNET4_ENABLED || env.SIGNET_ENABLED || env.LIQUID_ENABLED || env.LIQUID_TESTNET_ENABLED else toolBox" >
+        <div class="links" *ngIf="officialMempoolSpace || env.TESTNET_ENABLED || env.TESTNET4_ENABLED || env.SIGNET_ENABLED || env.REGTEST_ENABLED || env.LIQUID_ENABLED || env.LIQUID_TESTNET_ENABLED else toolBox" >
           <p class="category" i18n="footer.networks">Networks</p>
           <p *ngIf="(officialMempoolSpace || (env.BASE_MODULE === 'mempool')) && (currentNetwork !== '') && (currentNetwork !== 'mainnet')"><a [href]="networkLink('mainnet')" i18n="footer.mainnet-explorer">Mainnet Explorer</a></p>
           <p *ngIf="(officialMempoolSpace || (env.BASE_MODULE === 'mempool')) && (currentNetwork !== 'testnet') && env.TESTNET_ENABLED"><a [href]="networkLink('testnet')" i18n="footer.testnet3-explorer">Testnet3 Explorer</a></p>
           <p *ngIf="(officialMempoolSpace || (env.BASE_MODULE === 'mempool')) && (currentNetwork !== 'testnet4') && env.TESTNET4_ENABLED"><a [href]="networkLink('testnet4')" i18n="footer.testnet4-explorer">Testnet4 Explorer</a></p>
           <p *ngIf="(officialMempoolSpace || (env.BASE_MODULE === 'mempool')) && (currentNetwork !== 'signet') && env.SIGNET_ENABLED"><a [href]="networkLink('signet')" i18n="footer.signet-explorer">Signet Explorer</a></p>
+          <p *ngIf="(officialMempoolSpace || (env.BASE_MODULE === 'mempool')) && (currentNetwork !== 'regtest') && env.REGTEST_ENABLED"><a [href]="networkLink('regtest')" i18n="footer.regtest-explorer">Regtest Explorer</a></p>
           <p *ngIf="(officialMempoolSpace || env.LIQUID_ENABLED) && (currentNetwork !== 'liquidtestnet')"><a [href]="networkLink('liquidtestnet')" i18n="footer.liquid-testnet-explorer">Liquid Testnet Explorer</a></p>
           <p *ngIf="(officialMempoolSpace || env.LIQUID_ENABLED) && (currentNetwork !== 'liquid')"><a [href]="networkLink('liquid')" i18n="footer.liquid-explorer">Liquid Explorer</a></p>
         </div>

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

@@ -90,6 +90,20 @@ const ADDRESS_CHARS: {
         + `{6,100}`
       + `)`,
   },
+  regtest: {
+    base58: `[mn2]` // Same as testnet
+      + BASE58_CHARS
+      + `{33,34}`,
+    bech32: `(?:`
+        + `bcrt1` // Starts with bcrt1
+        + BECH32_CHARS_LW
+        + `{6,100}`
+      + `|`
+        + `BCRT1` // All upper case version
+        + BECH32_CHARS_UP
+        + `{6,100}`
+      + `)`,
+  },
   liquid: {
     base58: `[GHPQ]` // PQ is P2PKH, GH is P2SH
         + BASE58_CHARS
@@ -142,7 +156,7 @@ const ADDRESS_CHARS: {
 type RegexTypeNoAddrNoBlockHash = | `transaction` | `blockheight` | `date` | `timestamp`;
 export type RegexType = `address` | `blockhash` | RegexTypeNoAddrNoBlockHash;
 
-export const NETWORKS = [`mainnet`, `testnet4`, `testnet`, `signet`, `liquid`, `liquidtestnet`] as const;
+export const NETWORKS = [`mainnet`, `testnet4`, `testnet`, `signet`, `regtest`, `liquid`, `liquidtestnet`] as const;
 export type Network = typeof NETWORKS[number]; // Turn const array into union type
 
 export const ADDRESS_REGEXES: [RegExp, Network][] = NETWORKS
@@ -162,6 +176,8 @@ function isNetworkAvailable(network: Network, env: Env): boolean {
       return env.TESTNET4_ENABLED === true;
     case 'signet':
       return env.SIGNET_ENABLED === true;
+    case 'regtest':
+      return env.REGTEST_ENABLED === true;
     case 'liquid':
       return env.LIQUID_ENABLED === true;
     case 'liquidtestnet':
@@ -176,7 +192,7 @@ function isNetworkAvailable(network: Network, env: Env): boolean {
 export function needBaseModuleChange(fromBaseModule: 'mempool' | 'liquid', toNetwork: Network): boolean {
   if (!toNetwork) {return false;} // No target network means no change needed
   if (fromBaseModule === 'mempool') {
-    return toNetwork !== 'mainnet' && toNetwork !== 'testnet' && toNetwork !== 'testnet4' && toNetwork !== 'signet';
+    return toNetwork !== 'mainnet' && toNetwork !== 'testnet' && toNetwork !== 'testnet4' && toNetwork !== 'signet' && toNetwork !== 'regtest';
   }
   if (fromBaseModule === 'liquid') {
     return toNetwork !== 'liquid' && toNetwork !== 'liquidtestnet';
@@ -191,7 +207,7 @@ export function getTargetUrl(toNetwork: Network, address: string, env: Env): str
     targetUrl += '/address/';
     targetUrl += address;
   }
-  if (toNetwork === 'mainnet' || toNetwork === 'testnet' || toNetwork === 'testnet4' || toNetwork === 'signet') {
+  if (toNetwork === 'mainnet' || toNetwork === 'testnet' || toNetwork === 'testnet4' || toNetwork === 'signet' || toNetwork === 'regtest') {
     targetUrl = env.MEMPOOL_WEBSITE_URL;
     targetUrl += (toNetwork === 'mainnet' ? '' : `/${toNetwork}`);
     targetUrl += '/address/';
@@ -231,6 +247,9 @@ export function getRegex(type: RegexType, network?: Network): RegExp {
         case `signet`:
           leadingZeroes = 5;
           break;
+        case `regtest`:
+          leadingZeroes = 1; // Regtest has very low difficulty
+          break;
         case `liquid`:
           leadingZeroes = 8; // We are not interested in Liquid block hashes
           break;
@@ -298,6 +317,15 @@ export function getRegex(type: RegexType, network?: Network): RegExp {
           regex += `|`; // OR
           regex += `(?:02|03)${HEX_CHARS}{64}`; // Compressed pubkey
           break;
+        case `regtest`:
+          regex += ADDRESS_CHARS.regtest.base58;
+          regex += `|`; // OR
+          regex += ADDRESS_CHARS.regtest.bech32;
+          regex += `|`; // OR
+          regex += `04${HEX_CHARS}{128}`; // Uncompressed pubkey
+          regex += `|`; // OR
+          regex += `(?:02|03)${HEX_CHARS}{64}`; // Compressed pubkey
+          break;
         case `liquid`:
           regex += ADDRESS_CHARS.liquid.base58;
           regex += `|`; // OR

frontend/src/styles.scss

@@ -121,12 +121,14 @@ $dropdown-link-active-bg: $active-bg;
 
   --testnet: #1d486f;
   --signet: #6f1d5d;
+  --regtest: #7d7d7d;
   --liquid: #116761;
   --liquidtestnet: #494a4a;
 
   --mainnet-alt: #9339f4;
   --testnet-alt: #183550;
   --signet-alt: #471850;
+  --regtest-alt: #4a4a4a;
   --liquidtestnet-alt: #272e46;
 
   --taproot: #eba814;

frontend/src/theme-bukele.scss

@@ -88,12 +88,14 @@ $dropdown-link-active-bg: $active-bg;
 
   --testnet: #1d486f;
   --signet: #6f1d5d;
+  --regtest: #7d7d7d;
   --liquid: #116761;
   --liquidtestnet: #494a4a;
 
   --mainnet-alt: #9339f4;
   --testnet-alt: #183550;
   --signet-alt: #471850;
+  --regtest-alt: #4a4a4a;
   --liquidtestnet-alt: #272e46;
 
   --taproot: #eba814;

frontend/src/theme-contrast.scss

@@ -88,12 +88,14 @@ $dropdown-link-active-bg: $active-bg;
 
   --testnet: #1d486f;
   --signet: #6f1d5d;
+  --regtest: #7d7d7d;
   --liquid: #116761;
   --liquidtestnet: #494a4a;
 
   --mainnet-alt: #9339f4;
   --testnet-alt: #183550;
   --signet-alt: #471850;
+  --regtest-alt: #4a4a4a;
   --liquidtestnet-alt: #272e46;
 
   --taproot: #eba814;

frontend/src/theme-softsimon.scss

@@ -88,12 +88,14 @@ $dropdown-link-active-bg: $active-bg;
 
   --testnet: #1d486f;
   --signet: #6f1d5d;
+  --regtest: #7d7d7d;
   --liquid: #116761;
   --liquidtestnet: #494a4a;
 
   --mainnet-alt: #9339f4;
   --testnet-alt: #183550;
   --signet-alt: #471850;
+  --regtest-alt: #4a4a4a;
   --liquidtestnet-alt: #272e46;
 
   --taproot: #eba814;

production/mempool-config.regtest.json

@@ -0,0 +1,44 @@
+{
+  "MEMPOOL": {
+    "OFFICIAL": true,
+    "NETWORK": "regtest",
+    "BACKEND": "esplora",
+    "HTTP_PORT": 8989,
+    "MINED_BLOCKS_CACHE": 144,
+    "SPAWN_CLUSTER_PROCS": 0,
+    "API_URL_PREFIX": "/api/v1/",
+    "INDEXING_BLOCKS_AMOUNT": -1,
+    "AUTOMATIC_POOLS_UPDATE": false,
+    "POOLS_UPDATE_DELAY": 3600,
+    "AUDIT": true,
+    "RUST_GBT": true,
+    "POLL_RATE_MS": 500,
+    "DISK_CACHE_BLOCK_INTERVAL": 1,
+    "MAX_PUSH_TX_SIZE_WEIGHT": 4000000,
+    "ALLOW_UNREACHABLE": true,
+    "MAX_TRACKED_ADDRESSES": 10
+  },
+  "SYSLOG" : {
+    "MIN_PRIORITY": "debug"
+  },
+  "CORE_RPC": {
+    "PORT": 18443,
+    "USERNAME": "__BITCOIN_RPC_USER__",
+    "PASSWORD": "__BITCOIN_RPC_PASS__"
+  },
+  "ESPLORA": {
+    "UNIX_SOCKET_PATH": "/bitcoin/socket/esplora-bitcoin-regtest"
+  },
+  "DATABASE": {
+    "ENABLED": true,
+    "HOST": "127.0.0.1",
+    "SOCKET": "/var/run/mysql/mysql.sock",
+    "USERNAME": "__MEMPOOL_REGTEST_USER__",
+    "PASSWORD": "__MEMPOOL_REGTEST_PASS__",
+    "DATABASE": "mempool_regtest"
+  },
+  "STATISTICS": {
+    "ENABLED": true,
+    "TX_PER_SECOND_SAMPLE_PERIOD": 150
+  }
+}