diff --git a/backend/README.md b/backend/README.md
index 6ae4ae3e2..cecc07bc9 100644
--- a/backend/README.md
+++ b/backend/README.md
@@ -77,7 +77,7 @@ Query OK, 0 rows affected (0.00 sec)
 
 #### Build
 
-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer_
 
 _The build process requires [Rust](https://www.rust-lang.org/tools/install) to be installed._
 
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 66e8d19a2..07cc9ffb3 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -1,18 +1,19 @@
 {
   "name": "mempool-backend",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mempool-backend",
-      "version": "3.0.0-rc1",
+      "version": "3.1.0-dev",
       "hasInstallScript": true,
       "license": "GNU Affero General Public License v3.0",
       "dependencies": {
+        "@babel/core": "^7.25.2",
         "@mempool/electrum-client": "1.1.9",
         "@types/node": "^18.15.3",
-        "axios": "~1.7.2",
+        "axios": "1.7.2",
         "bitcoinjs-lib": "~6.1.3",
         "crypto-js": "~4.2.0",
         "express": "~4.19.2",
@@ -2280,6 +2281,7 @@
       "version": "1.7.2",
       "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.2.tgz",
       "integrity": "sha512-2A8QhOMrbomlDuiLeK9XibIBzuHeRcqqNOHp0Cyp5EoJ1IFDh+XZH3A6BkXtv0K4gFGCI0Y4BM7B1wOEi0Rmgw==",
+      "license": "MIT",
       "dependencies": {
         "follow-redirects": "^1.15.6",
         "form-data": "^4.0.0",
diff --git a/backend/package.json b/backend/package.json
index 959516ac8..558a1d0b8 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mempool-backend",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",
@@ -42,7 +42,7 @@
     "@babel/core": "^7.25.2",
     "@mempool/electrum-client": "1.1.9",
     "@types/node": "^18.15.3",
-    "axios": "~1.7.2",
+    "axios": "1.7.2",
     "bitcoinjs-lib": "~6.1.3",
     "crypto-js": "~4.2.0",
     "express": "~4.19.2",
diff --git a/backend/src/api/audit.ts b/backend/src/api/audit.ts
index eea96af69..e09234cdc 100644
--- a/backend/src/api/audit.ts
+++ b/backend/src/api/audit.ts
@@ -2,6 +2,7 @@ import config from '../config';
 import logger from '../logger';
 import { MempoolTransactionExtended, MempoolBlockWithTransactions } from '../mempool.interfaces';
 import rbfCache from './rbf-cache';
+import transactionUtils from './transaction-utils';
 
 const PROPAGATION_MARGIN = 180; // in seconds, time since a transaction is first seen after which it is assumed to have propagated to all miners
 
@@ -15,7 +16,8 @@ class Audit {
     const matches: string[] = []; // present in both mined block and template
     const added: string[] = []; // present in mined block, not in template
     const unseen: string[] = []; // present in the mined block, not in our mempool
-    const prioritized: string[] = []; // higher in the block than would be expected by in-band feerate alone
+    let prioritized: string[] = []; // higher in the block than would be expected by in-band feerate alone
+    let deprioritized: string[] = []; // lower in the block than would be expected by in-band feerate alone
     const fresh: string[] = []; // missing, but firstSeen or lastBoosted within PROPAGATION_MARGIN
     const rbf: string[] = []; // either missing or present, and either part of a full-rbf replacement, or a conflict with the mined block
     const accelerated: string[] = []; // prioritized by the mempool accelerator
@@ -133,23 +135,7 @@ class Audit {
       totalWeight += tx.weight;
     }
 
-
-    // identify "prioritized" transactions
-    let lastEffectiveRate = 0;
-    // Iterate over the mined template from bottom to top (excluding the coinbase)
-    // Transactions should appear in ascending order of mining priority.
-    for (let i = transactions.length - 1; i > 0; i--) {
-      const blockTx = transactions[i];
-      // If a tx has a lower in-band effective fee rate than the previous tx,
-      // it must have been prioritized out-of-band (in order to have a higher mining priority)
-      // so exclude from the analysis.
-      if ((blockTx.effectiveFeePerVsize || 0) < lastEffectiveRate) {
-        prioritized.push(blockTx.txid);
-        // accelerated txs may or may not have their prioritized fee rate applied, so don't use them as a reference
-      } else if (!isAccelerated[blockTx.txid]) {
-        lastEffectiveRate = blockTx.effectiveFeePerVsize || 0;
-      }
-    }
+    ({ prioritized, deprioritized } = transactionUtils.identifyPrioritizedTransactions(transactions, 'effectiveFeePerVsize'));
 
     // transactions missing from near the end of our template are probably not being censored
     let overflowWeightRemaining = overflowWeight - (config.MEMPOOL.BLOCK_WEIGHT_UNITS - totalWeight);
diff --git a/backend/src/api/bitcoin/bitcoin-api.ts b/backend/src/api/bitcoin/bitcoin-api.ts
index 3e1fe2108..7fa431db6 100644
--- a/backend/src/api/bitcoin/bitcoin-api.ts
+++ b/backend/src/api/bitcoin/bitcoin-api.ts
@@ -323,6 +323,7 @@ class BitcoinApi implements AbstractBitcoinApi {
       'witness_v1_taproot': 'v1_p2tr',
       'nonstandard': 'nonstandard',
       'multisig': 'multisig',
+      'anchor': 'anchor',
       'nulldata': 'op_return'
     };
 
diff --git a/backend/src/api/bitcoin/bitcoin.routes.ts b/backend/src/api/bitcoin/bitcoin.routes.ts
index 6225a9c1d..498003d98 100644
--- a/backend/src/api/bitcoin/bitcoin.routes.ts
+++ b/backend/src/api/bitcoin/bitcoin.routes.ts
@@ -20,6 +20,7 @@ import difficultyAdjustment from '../difficulty-adjustment';
 import transactionRepository from '../../repositories/TransactionRepository';
 import rbfCache from '../rbf-cache';
 import { calculateMempoolTxCpfp } from '../cpfp';
+import { handleError } from '../../utils/api';
 
 class BitcoinRoutes {
   public initRoutes(app: Application) {
@@ -86,7 +87,7 @@ class BitcoinRoutes {
       res.set('Content-Type', 'application/json');
       res.send(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -105,13 +106,13 @@ class BitcoinRoutes {
       const result = mempoolBlocks.getMempoolBlocks();
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private getTransactionTimes(req: Request, res: Response) {
     if (!Array.isArray(req.query.txId)) {
-      res.status(500).send('Not an array');
+      handleError(req, res, 500, 'Not an array');
       return;
     }
     const txIds: string[] = [];
@@ -128,12 +129,12 @@ class BitcoinRoutes {
   private async $getBatchedOutspends(req: Request, res: Response): Promise<IEsploraApi.Outspend[][] | void> {
     const txids_csv = req.query.txids;
     if (!txids_csv || typeof txids_csv !== 'string') {
-      res.status(500).send('Invalid txids format');
+      handleError(req, res, 500, 'Invalid txids format');
       return;
     }
     const txids = txids_csv.split(',');
     if (txids.length > 50) {
-      res.status(400).send('Too many txids requested');
+      handleError(req, res, 400, 'Too many txids requested');
       return;
     }
 
@@ -141,13 +142,13 @@ class BitcoinRoutes {
       const batchedOutspends = await bitcoinApi.$getBatchedOutspends(txids);
       res.json(batchedOutspends);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async $getCpfpInfo(req: Request, res: Response) {
     if (!/^[a-fA-F0-9]{64}$/.test(req.params.txId)) {
-      res.status(501).send(`Invalid transaction ID.`);
+      handleError(req, res, 501, `Invalid transaction ID.`);
       return;
     }
 
@@ -180,7 +181,7 @@ class BitcoinRoutes {
         try {
           cpfpInfo = await transactionRepository.$getCpfpInfo(req.params.txId);
         } catch (e) {
-          res.status(500).send('failed to get CPFP info');
+          handleError(req, res, 500, 'failed to get CPFP info');
           return;
         }
       }
@@ -209,7 +210,7 @@ class BitcoinRoutes {
       if (e instanceof Error && e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
         statusCode = 404;
       }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
     }
   }
 
@@ -223,7 +224,7 @@ class BitcoinRoutes {
       if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
         statusCode = 404;
       }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
     }
   }
 
@@ -284,13 +285,13 @@ class BitcoinRoutes {
         // Not modified
         // 422 Unprocessable Entity
         // https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/422
-        res.status(422).send(`Psbt had no missing nonWitnessUtxos.`);
+        handleError(req, res, 422, `Psbt had no missing nonWitnessUtxos.`);
       }
     } catch (e: any) {
       if (e instanceof Error && new RegExp(notFoundError).test(e.message)) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
       } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
       }
     }
   }
@@ -304,7 +305,7 @@ class BitcoinRoutes {
       if (e instanceof Error && e.message && e.message.indexOf('No such mempool or blockchain transaction') > -1) {
         statusCode = 404;
       }
-      res.status(statusCode).send(e instanceof Error ? e.message : e);
+      handleError(req, res, statusCode, e instanceof Error ? e.message : e);
     }
   }
 
@@ -314,7 +315,7 @@ class BitcoinRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
       res.json(transactions);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -336,7 +337,7 @@ class BitcoinRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * cacheDuration).toUTCString());
       res.json(block);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -346,7 +347,7 @@ class BitcoinRoutes {
       res.setHeader('content-type', 'text/plain');
       res.send(blockHeader);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -357,10 +358,11 @@ class BitcoinRoutes {
         res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
         res.json(auditSummary);
       } else {
-        return res.status(404).send(`audit not available`);
+        handleError(req, res, 404, `audit not available`);
+        return;
       }
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -371,7 +373,8 @@ class BitcoinRoutes {
         res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24 * 30).toUTCString());
         res.json(auditSummary);
       } else {
-        return res.status(404).send(`transaction audit not available`);
+        handleError(req, res, 404, `transaction audit not available`);
+        return;
       }
     } catch (e) {
       res.status(500).send(e instanceof Error ? e.message : e);
@@ -388,42 +391,49 @@ class BitcoinRoutes {
         return await this.getLegacyBlocks(req, res);
       }
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getBlocksByBulk(req: Request, res: Response) {
     try {
       if (['mainnet', 'testnet', 'signet'].includes(config.MEMPOOL.NETWORK) === false) { // Liquid - Not implemented
-        return res.status(404).send(`This API is only available for Bitcoin networks`);
+        handleError(req, res, 404, `This API is only available for Bitcoin networks`);
+        return;
       }
       if (config.MEMPOOL.MAX_BLOCKS_BULK_QUERY <= 0) {
-        return res.status(404).send(`This API is disabled. Set config.MEMPOOL.MAX_BLOCKS_BULK_QUERY to a positive number to enable it.`);
+        handleError(req, res, 404, `This API is disabled. Set config.MEMPOOL.MAX_BLOCKS_BULK_QUERY to a positive number to enable it.`);
+        return;
       }
       if (!Common.indexingEnabled()) {
-        return res.status(404).send(`Indexing is required for this API`);
+        handleError(req, res, 404, `Indexing is required for this API`);
+        return;
       }
 
       const from = parseInt(req.params.from, 10);
       if (!req.params.from || from < 0) {
-        return res.status(400).send(`Parameter 'from' must be a block height (integer)`);
+        handleError(req, res, 400, `Parameter 'from' must be a block height (integer)`);
+        return;
       }
       const to = req.params.to === undefined ? await bitcoinApi.$getBlockHeightTip() : parseInt(req.params.to, 10);
       if (to < 0) {
-        return res.status(400).send(`Parameter 'to' must be a block height (integer)`);
+        handleError(req, res, 400, `Parameter 'to' must be a block height (integer)`);
+        return;
       }
       if (from > to) {
-        return res.status(400).send(`Parameter 'to' must be a higher block height than 'from'`);
+        handleError(req, res, 400, `Parameter 'to' must be a higher block height than 'from'`);
+        return;
       }
       if ((to - from + 1) > config.MEMPOOL.MAX_BLOCKS_BULK_QUERY) {
-        return res.status(400).send(`You can only query ${config.MEMPOOL.MAX_BLOCKS_BULK_QUERY} blocks at once.`);
+        handleError(req, res, 400, `You can only query ${config.MEMPOOL.MAX_BLOCKS_BULK_QUERY} blocks at once.`);
+        return;
       }
 
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(await blocks.$getBlocksBetweenHeight(from, to));
 
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -458,10 +468,10 @@ class BitcoinRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(returnBlocks);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
-  
+
   private async getBlockTransactions(req: Request, res: Response) {
     try {
       loadingIndicators.setProgress('blocktxs-' + req.params.hash, 0);
@@ -483,7 +493,7 @@ class BitcoinRoutes {
       res.json(transactions);
     } catch (e) {
       loadingIndicators.setProgress('blocktxs-' + req.params.hash, 100);
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -492,13 +502,13 @@ class BitcoinRoutes {
       const blockHash = await bitcoinApi.$getBlockHash(parseInt(req.params.height, 10));
       res.send(blockHash);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getAddress(req: Request, res: Response) {
     if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
       return;
     }
 
@@ -507,15 +517,16 @@ class BitcoinRoutes {
       res.json(addressData);
     } catch (e) {
       if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        return res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
+        return;
       }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getAddressTransactions(req: Request, res: Response): Promise<void> {
     if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
       return;
     }
 
@@ -528,23 +539,23 @@ class BitcoinRoutes {
       res.json(transactions);
     } catch (e) {
       if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
         return;
       }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getAddressTransactionSummary(req: Request, res: Response): Promise<void> {
     if (config.MEMPOOL.BACKEND !== 'esplora') {
-      res.status(405).send('Address summary lookups require mempool/electrs backend.');
+      handleError(req, res, 405, 'Address summary lookups require mempool/electrs backend.');
       return;
     }
   }
 
   private async getScriptHash(req: Request, res: Response) {
     if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
       return;
     }
 
@@ -555,15 +566,16 @@ class BitcoinRoutes {
       res.json(addressData);
     } catch (e) {
       if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        return res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
+        return;
       }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getScriptHashTransactions(req: Request, res: Response): Promise<void> {
     if (config.MEMPOOL.BACKEND === 'none') {
-      res.status(405).send('Address lookups cannot be used with bitcoind as backend.');
+      handleError(req, res, 405, 'Address lookups cannot be used with bitcoind as backend.');
       return;
     }
 
@@ -578,16 +590,16 @@ class BitcoinRoutes {
       res.json(transactions);
     } catch (e) {
       if (e instanceof Error && e.message && (e.message.indexOf('too long') > 0 || e.message.indexOf('confirmed status') > 0)) {
-        res.status(413).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 413, e instanceof Error ? e.message : e);
         return;
       }
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async getScriptHashTransactionSummary(req: Request, res: Response): Promise<void> {
     if (config.MEMPOOL.BACKEND !== 'esplora') {
-      res.status(405).send('Scripthash summary lookups require mempool/electrs backend.');
+      handleError(req, res, 405, 'Scripthash summary lookups require mempool/electrs backend.');
       return;
     }
   }
@@ -597,7 +609,7 @@ class BitcoinRoutes {
       const blockHash = await bitcoinApi.$getAddressPrefix(req.params.prefix);
       res.send(blockHash);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -624,7 +636,7 @@ class BitcoinRoutes {
       const rawMempool = await bitcoinApi.$getRawMempool();
       res.send(rawMempool);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -632,12 +644,13 @@ class BitcoinRoutes {
     try {
       const result = blocks.getCurrentBlockHeight();
       if (!result) {
-        return res.status(503).send(`Service Temporarily Unavailable`);
+        handleError(req, res, 503, `Service Temporarily Unavailable`);
+        return;
       }
       res.setHeader('content-type', 'text/plain');
       res.send(result.toString());
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -647,7 +660,7 @@ class BitcoinRoutes {
       res.setHeader('content-type', 'text/plain');
       res.send(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -657,7 +670,7 @@ class BitcoinRoutes {
       res.setHeader('content-type', 'application/octet-stream');
       res.send(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -666,7 +679,7 @@ class BitcoinRoutes {
       const result = await bitcoinApi.$getTxIdsForBlock(req.params.hash);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -675,7 +688,7 @@ class BitcoinRoutes {
       const result = await bitcoinClient.validateAddress(req.params.address);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -688,7 +701,7 @@ class BitcoinRoutes {
         replaces
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -697,7 +710,7 @@ class BitcoinRoutes {
       const result = rbfCache.getRbfTrees(false);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -706,7 +719,7 @@ class BitcoinRoutes {
       const result = rbfCache.getRbfTrees(true);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -719,7 +732,7 @@ class BitcoinRoutes {
         res.status(204).send();
       }
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -728,7 +741,7 @@ class BitcoinRoutes {
       const result = await bitcoinApi.$getOutspends(req.params.txId);
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -738,10 +751,10 @@ class BitcoinRoutes {
       if (da) {
         res.json(da);
       } else {
-        res.status(503).send(`Service Temporarily Unavailable`);
+        handleError(req, res, 503, `Service Temporarily Unavailable`);
       }
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -752,7 +765,7 @@ class BitcoinRoutes {
       const txIdResult = await bitcoinApi.$sendRawTransaction(rawTx);
       res.send(txIdResult);
     } catch (e: any) {
-      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
         : (e.message || 'Error'));
     }
   }
@@ -764,7 +777,7 @@ class BitcoinRoutes {
       const txIdResult = await bitcoinClient.sendRawTransaction(txHex);
       res.send(txIdResult);
     } catch (e: any) {
-      res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
         : (e.message || 'Error'));
     }
   }
@@ -776,8 +789,7 @@ class BitcoinRoutes {
       const result = await bitcoinApi.$testMempoolAccept(rawTxs, maxfeerate);
       res.send(result);
     } catch (e: any) {
-      res.setHeader('content-type', 'text/plain');
-      res.status(400).send(e.message && e.code ? 'testmempoolaccept RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
+      handleError(req, res, 400, e.message && e.code ? 'testmempoolaccept RPC error: ' + JSON.stringify({ code: e.code, message: e.message })
         : (e.message || 'Error'));
     }
   }
diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index a5b8af0e2..306179ca5 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -219,10 +219,10 @@ class Blocks {
     };
   }
 
-  public summarizeBlockTransactions(hash: string, transactions: TransactionExtended[]): BlockSummary {
+  public summarizeBlockTransactions(hash: string, height: number, transactions: TransactionExtended[]): BlockSummary {
     return {
       id: hash,
-      transactions: Common.classifyTransactions(transactions),
+      transactions: Common.classifyTransactions(transactions, height),
     };
   }
 
@@ -616,7 +616,7 @@ class Blocks {
           // add CPFP
           const cpfpSummary = calculateGoodBlockCpfp(height, txs, []);
           // classify
-          const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
+          const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, height, cpfpSummary.transactions);
           await BlocksSummariesRepository.$saveTransactions(height, blockHash, classifiedTxs, 2);
           if (unclassifiedBlocks[height].version < 2 && targetSummaryVersion === 2) {
             const cpfpClusters = await CpfpRepository.$getClustersAt(height);
@@ -653,7 +653,7 @@ class Blocks {
             }
             const cpfpSummary = calculateGoodBlockCpfp(height, templateTxs?.filter(tx => tx['effectiveFeePerVsize'] != null) as MempoolTransactionExtended[], []);
             // classify
-            const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, cpfpSummary.transactions);
+            const { transactions: classifiedTxs } = this.summarizeBlockTransactions(blockHash, height, cpfpSummary.transactions);
             const classifiedTxMap: { [txid: string]: TransactionClassified } = {};
             for (const tx of classifiedTxs) {
               classifiedTxMap[tx.txid] = tx;
@@ -912,7 +912,7 @@ class Blocks {
       }
       const cpfpSummary: CpfpSummary = calculateGoodBlockCpfp(block.height, transactions, accelerations.map(a => ({ txid: a.txid, max_bid: a.feeDelta })));
       const blockExtended: BlockExtended = await this.$getBlockExtended(block, cpfpSummary.transactions);
-      const blockSummary: BlockSummary = this.summarizeBlockTransactions(block.id, cpfpSummary.transactions);
+      const blockSummary: BlockSummary = this.summarizeBlockTransactions(block.id, block.height, cpfpSummary.transactions);
       this.updateTimerProgress(timer, `got block data for ${this.currentBlockHeight}`);
 
       if (Common.indexingEnabled()) {
@@ -1169,7 +1169,7 @@ class Blocks {
         transactions: cpfpSummary.transactions.map(tx => {
           let flags: number = 0;
           try {
-            flags = Common.getTransactionFlags(tx);
+            flags = Common.getTransactionFlags(tx, height);
           } catch (e) {
             logger.warn('Failed to classify transaction: ' + (e instanceof Error ? e.message : e));
           }
@@ -1188,7 +1188,7 @@ class Blocks {
     } else {
       if (config.MEMPOOL.BACKEND === 'esplora') {
         const txs = (await bitcoinApi.$getTxsForBlock(hash)).map(tx => transactionUtils.extendTransaction(tx));
-        summary = this.summarizeBlockTransactions(hash, txs);
+        summary = this.summarizeBlockTransactions(hash, height || 0, txs);
         summaryVersion = 1;
       } else {
         // Call Core RPC
@@ -1324,7 +1324,7 @@ class Blocks {
           let summaryVersion = 0;
           if (config.MEMPOOL.BACKEND === 'esplora') {
             const txs = (await bitcoinApi.$getTxsForBlock(cleanBlock.hash)).map(tx => transactionUtils.extendTransaction(tx));
-            summary = this.summarizeBlockTransactions(cleanBlock.hash, txs);
+            summary = this.summarizeBlockTransactions(cleanBlock.hash, cleanBlock.height, txs);
             summaryVersion = 1;
           } else {
             // Call Core RPC
diff --git a/backend/src/api/common.ts b/backend/src/api/common.ts
index 13fc86147..d17068a09 100644
--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@@ -10,7 +10,6 @@ import logger from '../logger';
 import { getVarIntLength, opcodes, parseMultisigScript } from '../utils/bitcoin-script';
 
 // Bitcoin Core default policy settings
-const TX_MAX_STANDARD_VERSION = 2;
 const MAX_STANDARD_TX_WEIGHT = 400_000;
 const MAX_BLOCK_SIGOPS_COST = 80_000;
 const MAX_STANDARD_TX_SIGOPS_COST = (MAX_BLOCK_SIGOPS_COST / 5);
@@ -200,10 +199,13 @@ export class Common {
    *
    * returns true early if any standardness rule is violated, otherwise false
    * (except for non-mandatory-script-verify-flag and p2sh script evaluation rules which are *not* enforced)
+   *
+   * As standardness rules change, we'll need to apply the rules in force *at the time* to older blocks.
+   * For now, just pull out individual rules into versioned functions where necessary.
    */
-  static isNonStandard(tx: TransactionExtended): boolean {
+  static isNonStandard(tx: TransactionExtended, height?: number): boolean {
     // version
-    if (tx.version > TX_MAX_STANDARD_VERSION) {
+    if (this.isNonStandardVersion(tx, height)) {
       return true;
     }
 
@@ -250,6 +252,8 @@ export class Common {
         }
       } else if (['unknown', 'provably_unspendable', 'empty'].includes(vin.prevout?.scriptpubkey_type || '')) {
         return true;
+      } else if (this.isNonStandardAnchor(tx, height)) {
+        return true;
       }
       // TODO: bad-witness-nonstandard
     }
@@ -335,6 +339,49 @@ export class Common {
     return false;
   }
 
+  // Individual versioned standardness rules
+
+  static V3_STANDARDNESS_ACTIVATION_HEIGHT = {
+    'testnet4': 42_000,
+    'testnet': 2_900_000,
+    'signet': 211_000,
+    '': 863_500,
+  };
+  static isNonStandardVersion(tx: TransactionExtended, height?: number): boolean {
+    let TX_MAX_STANDARD_VERSION = 3;
+    if (
+      height != null
+      && this.V3_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+      && height <= this.V3_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+    ) {
+      // V3 transactions were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+      TX_MAX_STANDARD_VERSION = 2;
+    }
+
+    if (tx.version > TX_MAX_STANDARD_VERSION) {
+      return true;
+    }
+    return false;
+  }
+
+  static ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT = {
+    'testnet4': 42_000,
+    'testnet': 2_900_000,
+    'signet': 211_000,
+    '': 863_500,
+  };
+  static isNonStandardAnchor(tx: TransactionExtended, height?: number): boolean {
+    if (
+      height != null
+      && this.ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+      && height <= this.ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[config.MEMPOOL.NETWORK]
+    ) {
+      // anchor outputs were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+      return true;
+    }
+    return false;
+  }
+
   static getNonWitnessSize(tx: TransactionExtended): number {
     let weight = tx.weight;
     let hasWitness = false;
@@ -415,7 +462,7 @@ export class Common {
     return flags;
   }
 
-  static getTransactionFlags(tx: TransactionExtended): number {
+  static getTransactionFlags(tx: TransactionExtended, height?: number): number {
     let flags = tx.flags ? BigInt(tx.flags) : 0n;
 
     // Update variable flags (CPFP, RBF)
@@ -548,7 +595,7 @@ export class Common {
     if (hasFakePubkey) {
       flags |= TransactionFlags.fake_pubkey;
     }
-    
+
     // fast but bad heuristic to detect possible coinjoins
     // (at least 5 inputs and 5 outputs, less than half of which are unique amounts, with no address reuse)
     const addressReuse = Object.keys(reusedOutputAddresses).reduce((acc, key) => Math.max(acc, (reusedInputAddresses[key] || 0) + (reusedOutputAddresses[key] || 0)), 0) > 1;
@@ -564,17 +611,17 @@ export class Common {
       flags |= TransactionFlags.batch_payout;
     }
 
-    if (this.isNonStandard(tx)) {
+    if (this.isNonStandard(tx, height)) {
       flags |= TransactionFlags.nonstandard;
     }
 
     return Number(flags);
   }
 
-  static classifyTransaction(tx: TransactionExtended): TransactionClassified {
+  static classifyTransaction(tx: TransactionExtended, height?: number): TransactionClassified {
     let flags = 0;
     try {
-      flags = Common.getTransactionFlags(tx);
+      flags = Common.getTransactionFlags(tx, height);
     } catch (e) {
       logger.warn('Failed to add classification flags to transaction: ' + (e instanceof Error ? e.message : e));
     }
@@ -585,8 +632,8 @@ export class Common {
     };
   }
 
-  static classifyTransactions(txs: TransactionExtended[]): TransactionClassified[] {
-    return txs.map(Common.classifyTransaction);
+  static classifyTransactions(txs: TransactionExtended[], height?: number): TransactionClassified[] {
+    return txs.map(tx => Common.classifyTransaction(tx, height));
   }
 
   static stripTransaction(tx: TransactionExtended): TransactionStripped {
diff --git a/backend/src/api/database-migration.ts b/backend/src/api/database-migration.ts
index 6ddca7697..95f8c8707 100644
--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -7,7 +7,7 @@ import cpfpRepository from '../repositories/CpfpRepository';
 import { RowDataPacket } from 'mysql2';
 
 class DatabaseMigration {
-  private static currentVersion = 81;
+  private static currentVersion = 82;
   private queryTimeout = 3600_000;
   private statisticsAddedIndexed = false;
   private uniqueLogs: string[] = [];
@@ -700,6 +700,11 @@ class DatabaseMigration {
       await this.$executeQuery('ALTER TABLE `blocks_audits` ADD unseen_txs JSON DEFAULT "[]"');
       await this.updateToSchemaVersion(81);
     }
+
+    if (databaseSchemaVersion < 82 && isBitcoin === true && config.MEMPOOL.NETWORK === 'mainnet') {
+      await this.$fixBadV1AuditBlocks();
+      await this.updateToSchemaVersion(82);
+    }
   }
 
   /**
@@ -1314,6 +1319,28 @@ class DatabaseMigration {
       logger.warn(`Failed to migrate cpfp transaction data`);
     }
   }
+
+  private async $fixBadV1AuditBlocks(): Promise<void> {
+    const badBlocks = [
+      '000000000000000000011ad49227fc8c9ba0ca96ad2ebce41a862f9a244478dc',
+      '000000000000000000010ac1f68b3080153f2826ffddc87ceffdd68ed97d6960',
+      '000000000000000000024cbdafeb2660ae8bd2947d166e7fe15d1689e86b2cf7',
+      '00000000000000000002e1dbfbf6ae057f331992a058b822644b368034f87286',
+      '0000000000000000000019973b2778f08ad6d21e083302ff0833d17066921ebb',
+    ];
+
+    for (const hash of badBlocks) {
+      try {
+        await this.$executeQuery(`
+          UPDATE blocks_audits
+          SET prioritized_txs = '[]'
+          WHERE hash = '${hash}'
+        `, true);
+      } catch (e) {
+        continue;
+      }
+    }
+  }
 }
 
 export default new DatabaseMigration();
diff --git a/backend/src/api/explorer/channels.routes.ts b/backend/src/api/explorer/channels.routes.ts
index 391bf628e..8b4c3e8c8 100644
--- a/backend/src/api/explorer/channels.routes.ts
+++ b/backend/src/api/explorer/channels.routes.ts
@@ -1,6 +1,7 @@
 import config from '../../config';
 import { Application, Request, Response } from 'express';
 import channelsApi from './channels.api';
+import { handleError } from '../../utils/api';
 
 class ChannelsRoutes {
   constructor() { }
@@ -22,7 +23,7 @@ class ChannelsRoutes {
       const channels = await channelsApi.$searchChannelsById(req.params.search);
       res.json(channels);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -38,7 +39,7 @@ class ChannelsRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(channel);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -53,11 +54,11 @@ class ChannelsRoutes {
       const status: string = typeof req.query.status === 'string' ? req.query.status : '';
 
       if (index < -1) {
-        res.status(400).send('Invalid index');
+        handleError(req, res, 400, 'Invalid index');
         return;
       }
       if (['open', 'active', 'closed'].includes(status) === false) {
-        res.status(400).send('Invalid status');
+        handleError(req, res, 400, 'Invalid status');
         return;
       }
 
@@ -69,14 +70,14 @@ class ChannelsRoutes {
       res.header('X-Total-Count', channelsCount.toString());
       res.json(channels);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
   private async $getChannelsByTransactionIds(req: Request, res: Response): Promise<void> {
     try {
       if (!Array.isArray(req.query.txId)) {
-        res.status(400).send('Not an array');
+        handleError(req, res, 400, 'Not an array');
         return;
       }
       const txIds: string[] = [];
@@ -107,7 +108,7 @@ class ChannelsRoutes {
 
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -119,7 +120,7 @@ class ChannelsRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(channels);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -132,7 +133,7 @@ class ChannelsRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(channels);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
diff --git a/backend/src/api/explorer/general.routes.ts b/backend/src/api/explorer/general.routes.ts
index 07620e84a..b4d0c635d 100644
--- a/backend/src/api/explorer/general.routes.ts
+++ b/backend/src/api/explorer/general.routes.ts
@@ -3,6 +3,8 @@ import { Application, Request, Response } from 'express';
 import nodesApi from './nodes.api';
 import channelsApi from './channels.api';
 import statisticsApi from './statistics.api';
+import { handleError } from '../../utils/api';
+
 class GeneralLightningRoutes {
   constructor() { }
 
@@ -27,7 +29,7 @@ class GeneralLightningRoutes {
         channels: channels,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -41,7 +43,7 @@ class GeneralLightningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(statistics);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -50,7 +52,7 @@ class GeneralLightningRoutes {
       const statistics = await statisticsApi.$getLatestStatistics();
       res.json(statistics);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 }
diff --git a/backend/src/api/explorer/nodes.routes.ts b/backend/src/api/explorer/nodes.routes.ts
index 9d6373845..9ca2fd1c3 100644
--- a/backend/src/api/explorer/nodes.routes.ts
+++ b/backend/src/api/explorer/nodes.routes.ts
@@ -3,6 +3,7 @@ import { Application, Request, Response } from 'express';
 import nodesApi from './nodes.api';
 import DB from '../../database';
 import { INodesRanking } from '../../mempool.interfaces';
+import { handleError } from '../../utils/api';
 
 class NodesRoutes {
   constructor() { }
@@ -31,7 +32,7 @@ class NodesRoutes {
       const nodes = await nodesApi.$searchNodeByPublicKeyOrAlias(req.params.search);
       res.json(nodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -181,13 +182,13 @@ class NodesRoutes {
           }
         } catch (e) {}
       }
-      
+
       res.header('Pragma', 'public');
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(nodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -195,7 +196,7 @@ class NodesRoutes {
     try {
       const node = await nodesApi.$getNode(req.params.public_key);
       if (!node) {
-        res.status(404).send('Node not found');
+        handleError(req, res, 404, 'Node not found');
         return;
       }
       res.header('Pragma', 'public');
@@ -203,7 +204,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(node);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -215,7 +216,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(statistics);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -223,7 +224,7 @@ class NodesRoutes {
     try {
       const node = await nodesApi.$getFeeHistogram(req.params.public_key);
       if (!node) {
-        res.status(404).send('Node not found');
+        handleError(req, res, 404, 'Node not found');
         return;
       }
       res.header('Pragma', 'public');
@@ -231,7 +232,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(node);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -247,7 +248,7 @@ class NodesRoutes {
         topByChannels: topChannelsNodes,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -259,7 +260,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(topCapacityNodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -271,7 +272,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(topCapacityNodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -283,7 +284,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(topCapacityNodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -295,7 +296,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
       res.json(nodesPerAs);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -307,7 +308,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
       res.json(worldNodes);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -322,7 +323,7 @@ class NodesRoutes {
       );
 
       if (country.length === 0) {
-        res.status(404).send(`This country does not exist or does not host any lightning nodes on clearnet`);
+        handleError(req, res, 404, `This country does not exist or does not host any lightning nodes on clearnet`);
         return;
       }
 
@@ -335,7 +336,7 @@ class NodesRoutes {
         nodes: nodes,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -349,7 +350,7 @@ class NodesRoutes {
       );
 
       if (isp.length === 0) {
-        res.status(404).send(`This ISP does not exist or does not host any lightning nodes on clearnet`);
+        handleError(req, res, 404, `This ISP does not exist or does not host any lightning nodes on clearnet`);
         return;
       }
 
@@ -362,7 +363,7 @@ class NodesRoutes {
         nodes: nodes,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -374,7 +375,7 @@ class NodesRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
       res.json(nodesPerAs);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 }
diff --git a/backend/src/api/liquid/liquid.routes.ts b/backend/src/api/liquid/liquid.routes.ts
index 9ea61ca31..9dafd0def 100644
--- a/backend/src/api/liquid/liquid.routes.ts
+++ b/backend/src/api/liquid/liquid.routes.ts
@@ -3,6 +3,7 @@ import { Application, Request, Response } from 'express';
 import config from '../../config';
 import elementsParser from './elements-parser';
 import icons from './icons';
+import { handleError } from '../../utils/api';
 
 class LiquidRoutes {
   public initRoutes(app: Application) {
@@ -42,7 +43,7 @@ class LiquidRoutes {
       res.setHeader('content-length', result.length);
       res.send(result);
     } else {
-      res.status(404).send('Asset icon not found');
+      handleError(req, res, 404, 'Asset icon not found');
     }
   }
 
@@ -51,7 +52,7 @@ class LiquidRoutes {
     if (result) {
       res.json(result);
     } else {
-      res.status(404).send('Asset icons not found');
+      handleError(req, res, 404, 'Asset icons not found');
     }
   }
 
@@ -82,7 +83,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60 * 60).toUTCString());
       res.json(pegs);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -94,7 +95,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60 * 60).toUTCString());
       res.json(reserves);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -106,7 +107,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(currentSupply);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -118,7 +119,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(currentReserves);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -130,7 +131,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(auditStatus);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -142,7 +143,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(federationAddresses);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -154,7 +155,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(federationAddresses);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -166,7 +167,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(federationUtxos);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -178,7 +179,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(expiredUtxos);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -190,7 +191,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(federationUtxos);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -202,7 +203,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(emergencySpentUtxos);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -214,7 +215,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(emergencySpentUtxos);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -226,7 +227,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(recentPegs);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -238,7 +239,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(pegsVolume);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -250,7 +251,7 @@ class LiquidRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 30).toUTCString());
       res.json(pegsCount);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
diff --git a/backend/src/api/mining/mining-routes.ts b/backend/src/api/mining/mining-routes.ts
index 8f8bbac82..69e6d95d4 100644
--- a/backend/src/api/mining/mining-routes.ts
+++ b/backend/src/api/mining/mining-routes.ts
@@ -10,6 +10,7 @@ import mining from "./mining";
 import PricesRepository from '../../repositories/PricesRepository';
 import AccelerationRepository from '../../repositories/AccelerationRepository';
 import accelerationApi from '../services/acceleration';
+import { handleError } from '../../utils/api';
 
 class MiningRoutes {
   public initRoutes(app: Application) {
@@ -53,12 +54,12 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
       if (['testnet', 'signet', 'liquidtestnet'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Prices are not available on testnets.');
+        handleError(req, res, 400, 'Prices are not available on testnets.');
         return;
       }
       const timestamp = parseInt(req.query.timestamp as string, 10) || 0;
       const currency = req.query.currency as string;
-      
+
       let response;
       if (timestamp && currency) {
         response = await PricesRepository.$getNearestHistoricalPrice(timestamp, currency);
@@ -71,7 +72,7 @@ class MiningRoutes {
       }
       res.status(200).send(response);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -84,9 +85,9 @@ class MiningRoutes {
       res.json(stats);
     } catch (e) {
       if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
       } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
       }
     }
   }
@@ -103,9 +104,9 @@ class MiningRoutes {
       res.json(poolBlocks);
     } catch (e) {
       if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
       } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
       }
     }
   }
@@ -129,7 +130,7 @@ class MiningRoutes {
         res.json(pools);
       }
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -143,7 +144,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(stats);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -157,7 +158,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
       res.json(hashrates);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -172,9 +173,9 @@ class MiningRoutes {
       res.json(hashrates);
     } catch (e) {
       if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
-        res.status(404).send(e.message);
+        handleError(req, res, 404, e.message);
       } else {
-        res.status(500).send(e instanceof Error ? e.message : e);
+        handleError(req, res, 500, e instanceof Error ? e.message : e);
       }
     }
   }
@@ -203,7 +204,7 @@ class MiningRoutes {
         currentDifficulty: currentDifficulty,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -217,7 +218,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(blockFees);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -235,7 +236,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(blockFees);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -249,7 +250,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(blockRewards);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -263,7 +264,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(blockFeeRates);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -281,7 +282,7 @@ class MiningRoutes {
         weights: blockWeights
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -293,7 +294,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
       res.json(difficulty.map(adj => [adj.time, adj.height, adj.difficulty, adj.adjustment]));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -317,7 +318,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(blocksHealth.map(health => [health.time, health.height, health.match_rate]));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -326,7 +327,7 @@ class MiningRoutes {
       const audit = await BlocksAuditsRepository.$getBlockAudit(req.params.hash);
 
       if (!audit) {
-        res.status(204).send(`This block has not been audited.`);
+        handleError(req, res, 204, `This block has not been audited.`);
         return;
       }
 
@@ -335,7 +336,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
       res.json(audit);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -358,7 +359,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 300).toUTCString());
       res.json(result);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -371,7 +372,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(await BlocksAuditsRepository.$getBlockAuditScores(height, height - 15));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -384,7 +385,7 @@ class MiningRoutes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
       res.json(audit || 'null');
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -394,12 +395,12 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
       res.status(200).send(await AccelerationRepository.$getAccelerationInfo(req.params.slug));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -409,13 +410,13 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 3600 * 24).toUTCString());
       if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
       const height = req.params.height === undefined ? undefined : parseInt(req.params.height, 10);
       res.status(200).send(await AccelerationRepository.$getAccelerationInfo(null, height));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -425,12 +426,12 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
       res.status(200).send(await AccelerationRepository.$getAccelerationInfo(null, null, req.params.interval));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -440,12 +441,12 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
       res.status(200).send(await AccelerationRepository.$getAccelerationTotals(<string>req.query.pool, <string>req.query.interval));
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -455,12 +456,12 @@ class MiningRoutes {
       res.header('Cache-control', 'public');
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       if (!config.MEMPOOL_SERVICES.ACCELERATIONS || ['testnet', 'signet', 'liquidtestnet', 'liquid'].includes(config.MEMPOOL.NETWORK)) {
-        res.status(400).send('Acceleration data is not available.');
+        handleError(req, res, 400, 'Acceleration data is not available.');
         return;
       }
       res.status(200).send(accelerationApi.accelerations || []);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 
@@ -472,7 +473,7 @@ class MiningRoutes {
       accelerationApi.accelerationRequested(req.params.txid);
       res.status(200).send();
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      handleError(req, res, 500, e instanceof Error ? e.message : e);
     }
   }
 }
diff --git a/backend/src/api/transaction-utils.ts b/backend/src/api/transaction-utils.ts
index b3077b935..15d3e7110 100644
--- a/backend/src/api/transaction-utils.ts
+++ b/backend/src/api/transaction-utils.ts
@@ -338,6 +338,87 @@ class TransactionUtils {
     const positionOfScript = hasAnnex ? witness.length - 3 : witness.length - 2;
     return witness[positionOfScript];
   }
+
+  // calculate the most parsimonious set of prioritizations given a list of block transactions
+  // (i.e. the most likely prioritizations and deprioritizations)
+  public identifyPrioritizedTransactions(transactions: any[], rateKey: string): { prioritized: string[], deprioritized: string[] } {
+    // find the longest increasing subsequence of transactions
+    // (adapted from https://en.wikipedia.org/wiki/Longest_increasing_subsequence#Efficient_algorithms)
+    // should be O(n log n)
+    const X = transactions.slice(1).reverse().map((tx) => ({ txid: tx.txid, rate: tx[rateKey] })); // standard block order is by *decreasing* effective fee rate, but we want to iterate in increasing order (and skip the coinbase)
+    if (X.length < 2) {
+      return { prioritized: [], deprioritized: [] };
+    }
+    const N = X.length;
+    const P: number[] = new Array(N);
+    const M: number[] = new Array(N + 1);
+    M[0] = -1; // undefined so can be set to any value
+
+    let L = 0;
+    for (let i = 0; i < N; i++) {
+      // Binary search for the smallest positive l ≤ L
+      // such that X[M[l]].effectiveFeePerVsize > X[i].effectiveFeePerVsize
+      let lo = 1;
+      let hi = L + 1;
+      while (lo < hi) {
+        const mid = lo + Math.floor((hi - lo) / 2); // lo <= mid < hi
+        if (X[M[mid]].rate > X[i].rate) {
+          hi = mid;
+        } else { // if X[M[mid]].effectiveFeePerVsize < X[i].effectiveFeePerVsize
+          lo = mid + 1;
+        }
+      }
+
+      // After searching, lo == hi is 1 greater than the
+      // length of the longest prefix of X[i]
+      const newL = lo;
+
+      // The predecessor of X[i] is the last index of
+      // the subsequence of length newL-1
+      P[i] = M[newL - 1];
+      M[newL] = i;
+
+      if (newL > L) {
+        // If we found a subsequence longer than any we've
+        // found yet, update L
+        L = newL;
+      }
+    }
+
+    // Reconstruct the longest increasing subsequence
+    // It consists of the values of X at the L indices:
+    // ..., P[P[M[L]]], P[M[L]], M[L]
+    const LIS: any[] = new Array(L);
+    let k = M[L];
+    for (let j = L - 1; j >= 0; j--) {
+      LIS[j] = X[k];
+      k = P[k];
+    }
+
+    const lisMap = new Map<string, number>();
+    LIS.forEach((tx, index) => lisMap.set(tx.txid, index));
+
+    const prioritized: string[] = [];
+    const deprioritized: string[] = [];
+
+    let lastRate = X[0].rate;
+
+    for (const tx of X) {
+      if (lisMap.has(tx.txid)) {
+        lastRate = tx.rate;
+      } else {
+        if (Math.abs(tx.rate - lastRate) < 0.1) {
+          // skip if the rate is almost the same as the previous transaction
+        } else if (tx.rate <= lastRate) {
+          prioritized.push(tx.txid);
+        } else {
+          deprioritized.push(tx.txid);
+        }
+      }
+    }
+
+    return { prioritized, deprioritized };
+  }
 }
 
 export default new TransactionUtils();
diff --git a/backend/src/repositories/BlocksRepository.ts b/backend/src/repositories/BlocksRepository.ts
index 90100a767..de6c1deb8 100644
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -1106,7 +1106,7 @@ class BlocksRepository {
         let summaryVersion = 0;
         if (config.MEMPOOL.BACKEND === 'esplora') {
           const txs = (await bitcoinApi.$getTxsForBlock(dbBlk.id)).map(tx => transactionUtils.extendTransaction(tx));
-          summary = blocks.summarizeBlockTransactions(dbBlk.id, txs);
+          summary = blocks.summarizeBlockTransactions(dbBlk.id, dbBlk.height, txs);
           summaryVersion = 1;
         } else {
           // Call Core RPC
diff --git a/backend/src/utils/api.ts b/backend/src/utils/api.ts
new file mode 100644
index 000000000..69d746b9f
--- /dev/null
+++ b/backend/src/utils/api.ts
@@ -0,0 +1,9 @@
+import { Request, Response } from 'express';
+
+export function handleError(req: Request, res: Response, statusCode: number, errorMessage: string | unknown): void {
+  if (req.accepts('json')) {
+    res.status(statusCode).json({ error: errorMessage });
+  } else {
+    res.status(statusCode).send(errorMessage);
+  }
+}
\ No newline at end of file
diff --git a/backend/src/utils/bitcoin-script.ts b/backend/src/utils/bitcoin-script.ts
index 3414e8269..8f551aa23 100644
--- a/backend/src/utils/bitcoin-script.ts
+++ b/backend/src/utils/bitcoin-script.ts
@@ -158,7 +158,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
   if (!opN) {
     return;
   }
-  if (!opN.startsWith('OP_PUSHNUM_')) {
+  if (opN !== 'OP_0' && !opN.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const n = parseInt(opN.match(/[0-9]+/)?.[0] || '', 10);
@@ -178,7 +178,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
   if (!opM) {
     return;
   }
-  if (!opM.startsWith('OP_PUSHNUM_')) {
+  if (opM !== 'OP_0' && !opM.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const m = parseInt(opM.match(/[0-9]+/)?.[0] || '', 10);
diff --git a/frontend/README.md b/frontend/README.md
index 069f1d5f0..fb2a5e291 100644
--- a/frontend/README.md
+++ b/frontend/README.md
@@ -33,7 +33,7 @@ $ npm run config:defaults:liquid
 
 ### 3. Run the Frontend
 
-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer._
 
 Install project dependencies and run the frontend server:
 
@@ -70,7 +70,7 @@ Set up the [Mempool backend](../backend/) first, if you haven't already.
 
 ### 1. Build the Frontend
 
-_Make sure to use Node.js 16.10 and npm 7._
+_Make sure to use Node.js 20.x and npm 9.x or newer._
 
 Build the frontend:
 
diff --git a/frontend/cypress/fixtures/mainnet_mempoolInfo.json b/frontend/cypress/fixtures/mainnet_mempoolInfo.json
index d9e441277..584364e9a 100644
--- a/frontend/cypress/fixtures/mainnet_mempoolInfo.json
+++ b/frontend/cypress/fixtures/mainnet_mempoolInfo.json
@@ -750,7 +750,7 @@
     },
     "backendInfo": {
       "hostname": "node205.tk7.mempool.space",
-      "version": "3.0.0-rc1",
+      "version": "3.1.0-dev",
       "gitCommit": "abbc8a134",
       "lightning": false
     },
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index a75c49bf3..16400db7c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mempool-frontend",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mempool-frontend",
-      "version": "3.0.0-rc1",
+      "version": "3.1.0-dev",
       "license": "GNU Affero General Public License v3.0",
       "dependencies": {
         "@angular-devkit/build-angular": "^17.3.1",
@@ -42,7 +42,7 @@
         "rxjs": "~7.8.1",
         "tinyify": "^4.0.0",
         "tlite": "^0.1.9",
-        "tslib": "~2.6.0",
+        "tslib": "~2.7.0",
         "zone.js": "~0.14.4"
       },
       "devDependencies": {
@@ -62,7 +62,7 @@
       "optionalDependencies": {
         "@cypress/schematic": "^2.5.0",
         "@types/cypress": "^1.1.3",
-        "cypress": "^13.13.0",
+        "cypress": "^13.14.0",
         "cypress-fail-on-console-error": "~5.1.0",
         "cypress-wait-until": "^2.0.1",
         "mock-socket": "~9.3.1",
@@ -699,6 +699,11 @@
         "node": ">=10"
       }
     },
+    "node_modules/@angular-devkit/build-angular/node_modules/tslib": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+    },
     "node_modules/@angular-devkit/build-webpack": {
       "version": "0.1703.1",
       "resolved": "https://registry.npmjs.org/@angular-devkit/build-webpack/-/build-webpack-0.1703.1.tgz",
@@ -8040,13 +8045,13 @@
       "peer": true
     },
     "node_modules/cypress": {
-      "version": "13.13.0",
-      "resolved": "https://registry.npmjs.org/cypress/-/cypress-13.13.0.tgz",
-      "integrity": "sha512-ou/MQUDq4tcDJI2FsPaod2FZpex4kpIK43JJlcBgWrX8WX7R/05ZxGTuxedOuZBfxjZxja+fbijZGyxiLP6CFA==",
+      "version": "13.14.0",
+      "resolved": "https://registry.npmjs.org/cypress/-/cypress-13.14.0.tgz",
+      "integrity": "sha512-r0+nhd033x883YL6068futewUsl02Q7rWiinyAAIBDW/OOTn+UMILWgNuCiY3vtJjd53efOqq5R9dctQk/rKiw==",
       "hasInstallScript": true,
       "optional": true,
       "dependencies": {
-        "@cypress/request": "^3.0.0",
+        "@cypress/request": "^3.0.1",
         "@cypress/xvfb": "^1.2.4",
         "@types/sinonjs__fake-timers": "8.1.1",
         "@types/sizzle": "^2.3.2",
@@ -8805,9 +8810,9 @@
       "integrity": "sha512-XzWNH4ZSa9BwVUQSDorPWAUQ5WGuYz7zJUNpNif40zFCiCl20t8zgylmreNmn26h5kiyw2lg7RfTmeMBsDklqg=="
     },
     "node_modules/elliptic": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
-      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+      "version": "6.5.7",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.7.tgz",
+      "integrity": "sha512-ESVCtTwiA+XhY3wyh24QqRGBoP3rEdDUl3EDUUo9tft074fi19IrdpH7hLCMMP3CIj7jb3W96rn8lt/BqIlt5Q==",
       "dependencies": {
         "bn.js": "^4.11.9",
         "brorand": "^1.1.0",
@@ -12688,12 +12693,12 @@
       }
     },
     "node_modules/micromatch": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.4.tgz",
-      "integrity": "sha512-pRmzw/XUcwXGpD9aI9q/0XOwLNygjETJ8y0ao0wdqprrzDa4YnxLcz7fQRZr8voh8V10kGhABbNcHVk5wHgWwg==",
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
       "dependencies": {
-        "braces": "^3.0.1",
-        "picomatch": "^2.2.3"
+        "braces": "^3.0.3",
+        "picomatch": "^2.3.1"
       },
       "engines": {
         "node": ">=8.6"
@@ -16925,9 +16930,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
-      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
+      "integrity": "sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA=="
     },
     "node_modules/tuf-js": {
       "version": "2.2.0",
@@ -18849,6 +18854,11 @@
           "requires": {
             "lru-cache": "^6.0.0"
           }
+        },
+        "tslib": {
+          "version": "2.6.2",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+          "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
         }
       }
     },
@@ -24127,12 +24137,12 @@
       "peer": true
     },
     "cypress": {
-      "version": "13.13.0",
-      "resolved": "https://registry.npmjs.org/cypress/-/cypress-13.13.0.tgz",
-      "integrity": "sha512-ou/MQUDq4tcDJI2FsPaod2FZpex4kpIK43JJlcBgWrX8WX7R/05ZxGTuxedOuZBfxjZxja+fbijZGyxiLP6CFA==",
+      "version": "13.14.0",
+      "resolved": "https://registry.npmjs.org/cypress/-/cypress-13.14.0.tgz",
+      "integrity": "sha512-r0+nhd033x883YL6068futewUsl02Q7rWiinyAAIBDW/OOTn+UMILWgNuCiY3vtJjd53efOqq5R9dctQk/rKiw==",
       "optional": true,
       "requires": {
-        "@cypress/request": "^3.0.0",
+        "@cypress/request": "^3.0.1",
         "@cypress/xvfb": "^1.2.4",
         "@types/sinonjs__fake-timers": "8.1.1",
         "@types/sizzle": "^2.3.2",
@@ -24723,9 +24733,9 @@
       "integrity": "sha512-XzWNH4ZSa9BwVUQSDorPWAUQ5WGuYz7zJUNpNif40zFCiCl20t8zgylmreNmn26h5kiyw2lg7RfTmeMBsDklqg=="
     },
     "elliptic": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
-      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+      "version": "6.5.7",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.7.tgz",
+      "integrity": "sha512-ESVCtTwiA+XhY3wyh24QqRGBoP3rEdDUl3EDUUo9tft074fi19IrdpH7hLCMMP3CIj7jb3W96rn8lt/BqIlt5Q==",
       "requires": {
         "bn.js": "^4.11.9",
         "brorand": "^1.1.0",
@@ -27611,12 +27621,12 @@
       "integrity": "sha512-iclAHeNqNm68zFtnZ0e+1L2yUIdvzNoauKU4WBA3VvH/vPFieF7qfRlwUZU+DA9P9bPXIS90ulxoUoCH23sV2w=="
     },
     "micromatch": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.4.tgz",
-      "integrity": "sha512-pRmzw/XUcwXGpD9aI9q/0XOwLNygjETJ8y0ao0wdqprrzDa4YnxLcz7fQRZr8voh8V10kGhABbNcHVk5wHgWwg==",
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
       "requires": {
-        "braces": "^3.0.1",
-        "picomatch": "^2.2.3"
+        "braces": "^3.0.3",
+        "picomatch": "^2.3.1"
       }
     },
     "miller-rabin": {
@@ -30763,9 +30773,9 @@
       }
     },
     "tslib": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
-      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
+      "integrity": "sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA=="
     },
     "tuf-js": {
       "version": "2.2.0",
diff --git a/frontend/package.json b/frontend/package.json
index b9fa4d3bc..3b5d61be0 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mempool-frontend",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "description": "Bitcoin mempool visualizer and blockchain explorer backend",
   "license": "GNU Affero General Public License v3.0",
   "homepage": "https://mempool.space",
@@ -95,7 +95,7 @@
     "esbuild": "^0.23.0",
     "tinyify": "^4.0.0",
     "tlite": "^0.1.9",
-    "tslib": "~2.6.0",
+    "tslib": "~2.7.0",
     "zone.js": "~0.14.4"
   },
   "devDependencies": {
@@ -115,7 +115,7 @@
   "optionalDependencies": {
     "@cypress/schematic": "^2.5.0",
     "@types/cypress": "^1.1.3",
-    "cypress": "^13.13.0",
+    "cypress": "^13.14.0",
     "cypress-fail-on-console-error": "~5.1.0",
     "cypress-wait-until": "^2.0.1",
     "mock-socket": "~9.3.1",
diff --git a/frontend/src/app/bitcoin.utils.ts b/frontend/src/app/bitcoin.utils.ts
index 92d3de7f3..ae522121c 100644
--- a/frontend/src/app/bitcoin.utils.ts
+++ b/frontend/src/app/bitcoin.utils.ts
@@ -135,7 +135,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
     return;
   }
   const opN = ops.pop();
-  if (!opN.startsWith('OP_PUSHNUM_')) {
+  if (opN !== 'OP_0' && !opN.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const n = parseInt(opN.match(/[0-9]+/)[0], 10);
@@ -152,7 +152,7 @@ export function parseMultisigScript(script: string): void | { m: number, n: numb
     }
   }
   const opM = ops.pop();
-  if (!opM.startsWith('OP_PUSHNUM_')) {
+  if (opM !== 'OP_0' && !opM.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const m = parseInt(opM.match(/[0-9]+/)[0], 10);
diff --git a/frontend/src/app/components/about/about.component.html b/frontend/src/app/components/about/about.component.html
index 1af8d8e62..406835572 100644
--- a/frontend/src/app/components/about/about.component.html
+++ b/frontend/src/app/components/about/about.component.html
@@ -53,7 +53,7 @@
         <span>Spiral</span>
       </a>
       <a href="https://foundrydigital.com/" target="_blank" title="Foundry">
-        <svg xmlns="http://www.w3.org/2000/svg" id="b" data-name="Layer 2" style="zoom: 1;" width="32" height="76" viewBox="0 0 32 76" class="image">
+        <svg xmlns="http://www.w3.org/2000/svg" id="b" data-name="Layer 2" style="zoom: 1;" width="32" height="90" viewBox="0 -5 32 90" class="image">
           <defs>
             <style>
               .d {
@@ -130,14 +130,9 @@
         </svg>
         <span>Unchained</span>
       </a>
-      <a href="https://gemini.com/" target="_blank" title="Gemini">
-        <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="360" height="360" viewBox="0 0 360 360" class="image">
-          <rect style="fill: black" width="360" height="360" />
-          <g transform="matrix(0.62 0 0 0.62 180 180)">
-            <path style="fill: rgb(0,220,250)" transform=" translate(-162, -162)" d="M 211.74 0 C 154.74 0 106.35 43.84 100.25 100.25 C 43.84 106.35 1.4210854715202004e-14 154.76 1.4210854715202004e-14 211.74 C 0.044122601308501076 273.7212006364817 50.27879936351834 323.95587739869154 112.26 324 C 169.26 324 217.84 280.15999999999997 223.75 223.75 C 280.15999999999997 217.65 324 169.24 324 112.26 C 323.95587739869154 50.278799363518324 273.72120063648174 0.04412260130848722 211.74 -1.4210854715202004e-14 z M 297.74 124.84 C 291.9644950552469 162.621439649343 262.2969457716857 192.26062994820046 224.51 198 L 224.51 124.84 z M 26.3 199.16 C 31.986912917108594 161.30935034910615 61.653433460549415 131.56986937804106 99.48999999999998 125.78999999999999 L 99.49 199 L 26.3 199 z M 198.21 224.51 C 191.87736076583954 267.0991541201681 155.312384597087 298.62923417787493 112.255 298.62923417787493 C 69.19761540291302 298.62923417787493 32.63263923416048 267.0991541201682 26.3 224.51 z M 199.16 124.83999999999999 L 199.16 199 L 124.84 199 L 124.84 124.84 z M 297.7 99.48999999999998 L 125.78999999999999 99.48999999999998 C 132.12263923416046 56.90084587983182 168.687615402913 25.37076582212505 211.745 25.37076582212505 C 254.80238459708698 25.37076582212505 291.3673607658395 56.900845879831834 297.7 99.49 z" stroke-linecap="round" />
-          </g>
-        </svg>
-        <span>Gemini</span>
+      <a href="https://bitkey.world/" target="_blank" title="Bitkey">
+        <img class="image" src="/resources/profile/bitkey.svg" />
+        <span>Bitkey</span>
       </a>
       <a href="https://bullbitcoin.com/" target="_blank" title="Bull Bitcoin">
         <svg aria-hidden="true" class="image" viewBox="0 -5 40 40" xmlns="http://www.w3.org/2000/svg">
@@ -193,6 +188,19 @@
         </svg>
         <span>Exodus</span>
       </a>
+      <a href="https://gemini.com/" target="_blank" title="Gemini">
+        <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="360" height="360" viewBox="0 0 360 360" class="image">
+          <rect style="fill: black" width="360" height="360" />
+          <g transform="matrix(0.62 0 0 0.62 180 180)">
+            <path style="fill: rgb(0,220,250)" transform=" translate(-162, -162)" d="M 211.74 0 C 154.74 0 106.35 43.84 100.25 100.25 C 43.84 106.35 1.4210854715202004e-14 154.76 1.4210854715202004e-14 211.74 C 0.044122601308501076 273.7212006364817 50.27879936351834 323.95587739869154 112.26 324 C 169.26 324 217.84 280.15999999999997 223.75 223.75 C 280.15999999999997 217.65 324 169.24 324 112.26 C 323.95587739869154 50.278799363518324 273.72120063648174 0.04412260130848722 211.74 -1.4210854715202004e-14 z M 297.74 124.84 C 291.9644950552469 162.621439649343 262.2969457716857 192.26062994820046 224.51 198 L 224.51 124.84 z M 26.3 199.16 C 31.986912917108594 161.30935034910615 61.653433460549415 131.56986937804106 99.48999999999998 125.78999999999999 L 99.49 199 L 26.3 199 z M 198.21 224.51 C 191.87736076583954 267.0991541201681 155.312384597087 298.62923417787493 112.255 298.62923417787493 C 69.19761540291302 298.62923417787493 32.63263923416048 267.0991541201682 26.3 224.51 z M 199.16 124.83999999999999 L 199.16 199 L 124.84 199 L 124.84 124.84 z M 297.7 99.48999999999998 L 125.78999999999999 99.48999999999998 C 132.12263923416046 56.90084587983182 168.687615402913 25.37076582212505 211.745 25.37076582212505 C 254.80238459708698 25.37076582212505 291.3673607658395 56.900845879831834 297.7 99.49 z" stroke-linecap="round" />
+          </g>
+        </svg>
+        <span>Gemini</span>
+      </a>
+      <a href="https://leather.io/" target="_blank" title="Leather">
+        <img class="image" src="/resources/profile/leather.svg" />
+        <span>Leather</span>
+      </a>
     </div>
   </div>
 
diff --git a/frontend/src/app/components/about/about.component.scss b/frontend/src/app/components/about/about.component.scss
index 41e9209b7..6a20239cc 100644
--- a/frontend/src/app/components/about/about.component.scss
+++ b/frontend/src/app/components/about/about.component.scss
@@ -251,3 +251,12 @@
   width: 64px;
   height: 64px;
 }
+
+.enterprise-sponsor {
+  .wrapper {
+    display: flex;
+    flex-wrap: wrap;
+    justify-content: center;
+    max-width: 800px; 
+  }
+}
\ No newline at end of file
diff --git a/frontend/src/app/components/address-labels/address-labels.component.ts b/frontend/src/app/components/address-labels/address-labels.component.ts
index dd81b9809..ff3c27240 100644
--- a/frontend/src/app/components/address-labels/address-labels.component.ts
+++ b/frontend/src/app/components/address-labels/address-labels.component.ts
@@ -55,7 +55,7 @@ export class AddressLabelsComponent implements OnChanges {
   }
 
   handleVin() {
-    const address = new AddressTypeInfo(this.network || 'mainnet', this.vin.prevout?.scriptpubkey_address, this.vin.prevout?.scriptpubkey_type as AddressType, [this.vin])
+    const address = new AddressTypeInfo(this.network || 'mainnet', this.vin.prevout?.scriptpubkey_address, this.vin.prevout?.scriptpubkey_type as AddressType, [this.vin]);
     if (address?.scripts.size) {
       const script = address?.scripts.values().next().value;
       if (script.template?.label) {
diff --git a/frontend/src/app/components/amount-selector/amount-selector.component.html b/frontend/src/app/components/amount-selector/amount-selector.component.html
new file mode 100644
index 000000000..b509d6fe3
--- /dev/null
+++ b/frontend/src/app/components/amount-selector/amount-selector.component.html
@@ -0,0 +1,7 @@
+<div [formGroup]="amountForm" class="text-small text-center">
+    <select formControlName="mode" class="custom-select custom-select-sm form-control-secondary form-control mx-auto" style="width: 70px;" (change)="changeMode()">
+        <option value="btc" i18n="shared.btc|BTC">BTC</option>
+        <option value="sats" i18n="shared.sat|sat">sat</option>
+        <option value="fiat" i18n="shared.fiat|Fiat">Fiat</option>
+    </select>
+</div>
diff --git a/frontend/src/app/components/amount-selector/amount-selector.component.scss b/frontend/src/app/components/amount-selector/amount-selector.component.scss
new file mode 100644
index 000000000..e69de29bb
diff --git a/frontend/src/app/components/amount-selector/amount-selector.component.ts b/frontend/src/app/components/amount-selector/amount-selector.component.ts
new file mode 100644
index 000000000..144b0f1db
--- /dev/null
+++ b/frontend/src/app/components/amount-selector/amount-selector.component.ts
@@ -0,0 +1,36 @@
+import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
+import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
+import { StorageService } from '../../services/storage.service';
+import { StateService } from '../../services/state.service';
+
+@Component({
+  selector: 'app-amount-selector',
+  templateUrl: './amount-selector.component.html',
+  styleUrls: ['./amount-selector.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush
+})
+export class AmountSelectorComponent implements OnInit {
+  amountForm: UntypedFormGroup;
+  modes = ['btc', 'sats', 'fiat'];
+
+  constructor(
+    private formBuilder: UntypedFormBuilder,
+    private stateService: StateService,
+    private storageService: StorageService,
+  ) { }
+
+  ngOnInit() {
+    this.amountForm = this.formBuilder.group({
+      mode: ['btc']
+    });
+    this.stateService.viewAmountMode$.subscribe((mode) => {
+      this.amountForm.get('mode')?.setValue(mode);
+    });
+  }
+
+  changeMode() {
+    const newMode = this.amountForm.get('mode')?.value;
+    this.storageService.setValue('view-amount-mode', newMode);
+    this.stateService.viewAmountMode$.next(newMode);
+  }
+}
diff --git a/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts b/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts
index ab9a29293..3be0692a5 100644
--- a/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts
+++ b/frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts
@@ -198,7 +198,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
   }
 
   // initialize the scene without any entry transition
-  setup(transactions: TransactionStripped[]): void {
+  setup(transactions: TransactionStripped[], sort: boolean = false): void {
     const filtersAvailable = transactions.reduce((flagSet, tx) => flagSet || tx.flags > 0, false);
     if (filtersAvailable !== this.filtersAvailable) {
       this.setFilterFlags();
@@ -206,7 +206,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     this.filtersAvailable = filtersAvailable;
     if (this.scene) {
       this.clearUpdateQueue();
-      this.scene.setup(transactions);
+      this.scene.setup(transactions, sort);
       this.readyNextFrame = true;
       this.start();
       this.updateSearchHighlight();
diff --git a/frontend/src/app/components/block-overview-graph/block-scene.ts b/frontend/src/app/components/block-overview-graph/block-scene.ts
index c59fcb7d4..4f07818a5 100644
--- a/frontend/src/app/components/block-overview-graph/block-scene.ts
+++ b/frontend/src/app/components/block-overview-graph/block-scene.ts
@@ -88,16 +88,19 @@ export default class BlockScene {
   }
 
   // set up the scene with an initial set of transactions, without any transition animation
-  setup(txs: TransactionStripped[]) {
+  setup(txs: TransactionStripped[], sort: boolean = false) {
     // clean up any old transactions
     Object.values(this.txs).forEach(tx => {
       tx.destroy();
       delete this.txs[tx.txid];
     });
     this.layout = new BlockLayout({ width: this.gridWidth, height: this.gridHeight });
-    txs.forEach(tx => {
-      const txView = new TxView(tx, this);
-      this.txs[tx.txid] = txView;
+    let txViews = txs.map(tx => new TxView(tx, this));
+    if (sort) {
+      txViews = txViews.sort(feeRateDescending);
+    }
+    txViews.forEach(txView => {
+      this.txs[txView.txid] = txView;
       this.place(txView);
       this.saveGridToScreenPosition(txView);
       this.applyTxUpdate(txView, {
diff --git a/frontend/src/app/components/block-overview-graph/tx-view.ts b/frontend/src/app/components/block-overview-graph/tx-view.ts
index ad24b26c3..f612368f4 100644
--- a/frontend/src/app/components/block-overview-graph/tx-view.ts
+++ b/frontend/src/app/components/block-overview-graph/tx-view.ts
@@ -33,7 +33,7 @@ export default class TxView implements TransactionStripped {
   flags: number;
   bigintFlags?: bigint | null = 0b00000100_00000000_00000000_00000000n;
   time?: number;
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'added_prioritized' | 'prioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'added_prioritized' | 'prioritized' | 'added_deprioritized' | 'deprioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
   context?: 'projected' | 'actual';
   scene?: BlockScene;
 
diff --git a/frontend/src/app/components/block-overview-graph/utils.ts b/frontend/src/app/components/block-overview-graph/utils.ts
index 4f7c7ed5a..625029db0 100644
--- a/frontend/src/app/components/block-overview-graph/utils.ts
+++ b/frontend/src/app/components/block-overview-graph/utils.ts
@@ -142,6 +142,10 @@ export function defaultColorFunction(
       return auditColors.added_prioritized;
     case 'prioritized':
       return auditColors.prioritized;
+    case 'added_deprioritized':
+      return auditColors.added_prioritized;
+    case 'deprioritized':
+      return auditColors.prioritized;
     case 'selected':
       return colors.marginal[levelIndex] || colors.marginal[defaultMempoolFeeColors.length - 1];
     case 'accelerated':
diff --git a/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html b/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html
index 037229398..f1f5bb3d4 100644
--- a/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html
+++ b/frontend/src/app/components/block-overview-tooltip/block-overview-tooltip.component.html
@@ -79,6 +79,11 @@
               <span class="badge badge-warning" i18n="tx-features.tag.added|Added">Added</span>
               <span class="badge badge-warning ml-1" i18n="tx-features.tag.prioritized|Prioritized">Prioritized</span>
             </ng-container>
+            <span *ngSwitchCase="'deprioritized'" class="badge badge-warning" i18n="tx-features.tag.prioritized|Deprioritized">Deprioritized</span>
+            <ng-container *ngSwitchCase="'added_deprioritized'">
+              <span class="badge badge-warning" i18n="tx-features.tag.added|Added">Added</span>
+              <span class="badge badge-warning ml-1" i18n="tx-features.tag.prioritized|Deprioritized">Deprioritized</span>
+            </ng-container>
             <span *ngSwitchCase="'selected'" class="badge badge-warning" i18n="transaction.audit.marginal">Marginal fee rate</span>
             <span *ngSwitchCase="'rbf'" class="badge badge-warning" i18n="tx-features.tag.conflict|Conflict">Conflict</span>
             <span *ngSwitchCase="'accelerated'" class="badge badge-accelerated" i18n="transaction.audit.accelerated">Accelerated</span>
diff --git a/frontend/src/app/components/block/block.component.ts b/frontend/src/app/components/block/block.component.ts
index 44328c591..5cba85e90 100644
--- a/frontend/src/app/components/block/block.component.ts
+++ b/frontend/src/app/components/block/block.component.ts
@@ -17,6 +17,7 @@ import { PriceService, Price } from '../../services/price.service';
 import { CacheService } from '../../services/cache.service';
 import { ServicesApiServices } from '../../services/services-api.service';
 import { PreloadService } from '../../services/preload.service';
+import { identifyPrioritizedTransactions } from '../../shared/transaction.utils';
 
 @Component({
   selector: 'app-block',
@@ -524,6 +525,7 @@ export class BlockComponent implements OnInit, OnDestroy {
       const isUnseen = {};
       const isAdded = {};
       const isPrioritized = {};
+      const isDeprioritized = {};
       const isCensored = {};
       const isMissing = {};
       const isSelected = {};
@@ -535,6 +537,17 @@ export class BlockComponent implements OnInit, OnDestroy {
       this.numUnexpected = 0;
 
       if (blockAudit?.template) {
+        // augment with locally calculated *de*prioritized transactions if possible
+        const { prioritized, deprioritized } = identifyPrioritizedTransactions(transactions);
+        // but if the local calculation produces returns unexpected results, don't use it
+        let useLocalDeprioritized = deprioritized.length < (transactions.length * 0.1);
+        for (const tx of prioritized) {
+          if (!isPrioritized[tx] && !isAccelerated[tx]) {
+            useLocalDeprioritized = false;
+            break;
+          }
+        }
+
         for (const tx of blockAudit.template) {
           inTemplate[tx.txid] = true;
           if (tx.acc) {
@@ -550,9 +563,14 @@ export class BlockComponent implements OnInit, OnDestroy {
         for (const txid of blockAudit.addedTxs) {
           isAdded[txid] = true;
         }
-        for (const txid of blockAudit.prioritizedTxs || []) {
+        for (const txid of blockAudit.prioritizedTxs) {
           isPrioritized[txid] = true;
         }
+        if (useLocalDeprioritized) {
+          for (const txid of deprioritized || []) {
+            isDeprioritized[txid] = true;
+          }
+        }
         for (const txid of blockAudit.missingTxs) {
           isCensored[txid] = true;
         }
@@ -608,6 +626,12 @@ export class BlockComponent implements OnInit, OnDestroy {
             } else {
               tx.status = 'prioritized';
             }
+          } else if (isDeprioritized[tx.txid]) {
+            if (isAdded[tx.txid] || (blockAudit.version > 0 && isUnseen[tx.txid])) {
+              tx.status = 'added_deprioritized';
+            } else {
+              tx.status = 'deprioritized';
+            }
           } else if (isAdded[tx.txid] && (blockAudit.version === 0 || isUnseen[tx.txid])) {
             tx.status = 'added';
           } else if (inTemplate[tx.txid]) {
diff --git a/frontend/src/app/components/faucet/faucet.component.html b/frontend/src/app/components/faucet/faucet.component.html
index 89e6bb8a8..0f0307e54 100644
--- a/frontend/src/app/components/faucet/faucet.component.html
+++ b/frontend/src/app/components/faucet/faucet.component.html
@@ -5,7 +5,7 @@
   </div>
 
   <div class="faucet-container text-center">
-  
+
     @if (txid) {
       <div class="alert alert-success w-100 text-truncate">
         <fa-icon [icon]="['fas', 'circle-check']"></fa-icon>
@@ -36,6 +36,13 @@
         <app-twitter-login customClass="btn btn-sm" width="180px" redirectTo="/testnet4/faucet" buttonString="Link your Twitter"></app-twitter-login>
       </div>
     }
+    @else if (error === 'account_limited') {
+      <div class="alert alert-mempool d-block text-center w-100">
+        <div class="d-inline align-middle">
+          <span class="mb-2 mr-2">Your Twitter account does not allow you to access the faucet</span>
+        </div>
+      </div>
+    }
     @else if (error) {
       <!-- User can request -->
       <app-mempool-error class="w-100" [error]="error"></app-mempool-error>
@@ -81,7 +88,7 @@
     }
 
     <!-- Send back coins -->
-    @if (status?.address) {  
+    @if (status?.address) {
       <div class="mt-4 alert alert-info w-100">If you no longer need your testnet4 coins, please consider <a class="text-primary" [routerLink]="['/address/' | relativeUrl, status.address]"><u>sending them back</u></a> to replenish the faucet.</div>
     }
 
diff --git a/frontend/src/app/components/faucet/faucet.component.ts b/frontend/src/app/components/faucet/faucet.component.ts
index 891b6310d..566a3b970 100644
--- a/frontend/src/app/components/faucet/faucet.component.ts
+++ b/frontend/src/app/components/faucet/faucet.component.ts
@@ -19,7 +19,7 @@ export class FaucetComponent implements OnInit, OnDestroy {
   error: string = '';
   user: any = undefined;
   txid: string = '';
- 
+
   faucetStatusSubscription: Subscription;
   status: {
     min: number; // minimum amount to request at once (in sats)
diff --git a/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts b/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts
index 2c564882e..50f8b650f 100644
--- a/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts
+++ b/frontend/src/app/components/mempool-block-overview/mempool-block-overview.component.ts
@@ -31,7 +31,7 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
 
   lastBlockHeight: number;
   blockIndex: number;
-  isLoading$ = new BehaviorSubject<boolean>(true);
+  isLoading$ = new BehaviorSubject<boolean>(false);
   timeLtrSubscription: Subscription;
   timeLtr: boolean;
   chainDirection: string = 'right';
@@ -95,6 +95,7 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
             }
           }
           this.updateBlock({
+            block: this.blockIndex,
             removed,
             changed,
             added
@@ -110,8 +111,11 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
       if (this.blockGraph) {
         this.blockGraph.clear(changes.index.currentValue > changes.index.previousValue ? this.chainDirection : this.poolDirection);
       }
-      this.isLoading$.next(true);
-      this.websocketService.startTrackMempoolBlock(changes.index.currentValue);
+      if (!this.websocketService.startTrackMempoolBlock(changes.index.currentValue) && this.stateService.mempoolBlockState && this.stateService.mempoolBlockState.block === changes.index.currentValue) {
+        this.resumeBlock(Object.values(this.stateService.mempoolBlockState.transactions));
+      } else {
+        this.isLoading$.next(true);
+      }
     }
   }
 
@@ -153,6 +157,19 @@ export class MempoolBlockOverviewComponent implements OnInit, OnDestroy, OnChang
     this.isLoading$.next(false);
   }
 
+  resumeBlock(transactionsStripped: TransactionStripped[]): void {
+    if (this.blockGraph) {
+      this.firstLoad = false;
+      this.blockGraph.setup(transactionsStripped, true);
+      this.blockIndex = this.index;
+      this.isLoading$.next(false);
+    } else {
+      requestAnimationFrame(() => {
+        this.resumeBlock(transactionsStripped);
+      });
+    }
+  }
+
   onTxClick(event: { tx: TransactionStripped, keyModifier: boolean }): void {
     const url = new RelativeUrlPipe(this.stateService).transform(`/tx/${event.tx.txid}`);
     if (!event.keyModifier) {
diff --git a/frontend/src/app/components/mempool-block/mempool-block.component.ts b/frontend/src/app/components/mempool-block/mempool-block.component.ts
index 430a456ec..d2e658302 100644
--- a/frontend/src/app/components/mempool-block/mempool-block.component.ts
+++ b/frontend/src/app/components/mempool-block/mempool-block.component.ts
@@ -71,7 +71,7 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
         })
       );
 
-    this.mempoolBlockTransactions$ = this.stateService.liveMempoolBlockTransactions$.pipe(map(txMap => Object.values(txMap)));
+    this.mempoolBlockTransactions$ = this.stateService.liveMempoolBlockTransactions$.pipe(map(({transactions}) => Object.values(transactions)));
 
     this.network$ = this.stateService.networkChanged$;
   }
diff --git a/frontend/src/app/components/tracker/tracker.component.ts b/frontend/src/app/components/tracker/tracker.component.ts
index 24b5fc1dc..3b0f53e9c 100644
--- a/frontend/src/app/components/tracker/tracker.component.ts
+++ b/frontend/src/app/components/tracker/tracker.component.ts
@@ -747,7 +747,7 @@ export class TrackerComponent implements OnInit, OnDestroy {
 
   checkAccelerationEligibility() {
     if (this.tx) {
-      this.tx.flags = getTransactionFlags(this.tx);
+      this.tx.flags = getTransactionFlags(this.tx, null, null, this.tx.status?.block_time, this.stateService.network);
       const replaceableInputs = (this.tx.flags & (TransactionFlags.sighash_none | TransactionFlags.sighash_acp)) > 0n;
       const highSigop = (this.tx.sigops * 20) > this.tx.weight;
       this.eligibleForAcceleration = !replaceableInputs && !highSigop;
diff --git a/frontend/src/app/components/transaction/transaction.component.html b/frontend/src/app/components/transaction/transaction.component.html
index 553d3221f..b2e55a3b0 100644
--- a/frontend/src/app/components/transaction/transaction.component.html
+++ b/frontend/src/app/components/transaction/transaction.component.html
@@ -551,23 +551,23 @@
         <td class="td-width align-items-center align-middle" i18n="transaction.eta|Transaction ETA">ETA</td>
         <td>
           <ng-container *ngIf="(ETA$ | async) as eta; else etaSkeleton">
-            @if (eta.blocks >= 7) {
-              <span [class]="(!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && eligibleForAcceleration && notAcceleratedOnLoad) ? 'etaDeepMempool justify-content-end align-items-center' : ''">
-                <span i18n="transaction.eta.not-any-time-soon|Transaction ETA mot any time soon">Not any time soon</span>
-                @if (!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && eligibleForAcceleration && notAcceleratedOnLoad) {
-                  <a class="btn btn-sm accelerateDeepMempool btn-small-height float-right" i18n="transaction.accelerate|Accelerate button label" (click)="onAccelerateClicked()">Accelerate</a>
-                }
-              </span>
-            } @else if (network === 'liquid' || network === 'liquidtestnet') {
+            @if (network === 'liquid' || network === 'liquidtestnet') {
               <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
             } @else {
-              <span [class]="(!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && eligibleForAcceleration && notAcceleratedOnLoad) ? 'etaDeepMempool justify-content-end align-items-center' : ''">
-                <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
-                @if (!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && eligibleForAcceleration && notAcceleratedOnLoad) {
-                  <a class="btn btn-sm accelerateDeepMempool btn-small-height float-right" i18n="transaction.accelerate|Accelerate button label" (click)="onAccelerateClicked()">Accelerate</a>
+              <span [class]="(!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && notAcceleratedOnLoad) ? 'etaDeepMempool d-flex justify-content-between' : ''">
+                @if (eta.blocks >= 7) {
+                  <span i18n="transaction.eta.not-any-time-soon|Transaction ETA mot any time soon">Not any time soon</span>
+                } @else {
+                  <app-time kind="until" [time]="eta.time" [fastRender]="false" [fixedRender]="true"></app-time>
+                }
+                @if (!tx?.acceleration && acceleratorAvailable && accelerateCtaType === 'button' && !showAccelerationSummary && notAcceleratedOnLoad) {
+                  <div class="d-flex accelerate">
+                    <a class="btn btn-sm accelerateDeepMempool btn-small-height" [class.disabled]="!eligibleForAcceleration" i18n="transaction.accelerate|Accelerate button label" (click)="onAccelerateClicked()">Accelerate</a>
+                    <a *ngIf="!eligibleForAcceleration" href="https://mempool.space/accelerator#why-cant-accelerate" target="_blank" class="info-badges ml-1" i18n-ngbTooltip="Mempool Accelerator&trade; tooltip" ngbTooltip="This transaction cannot be accelerated">
+                        <fa-icon [icon]="['fas', 'info-circle']" [fixedWidth]="true"></fa-icon>
+                    </a>
+                  </div>
                 }
-              </span>
-              <span class="eta justify-content-end">
               </span>
             }
           </ng-container>
diff --git a/frontend/src/app/components/transaction/transaction.component.scss b/frontend/src/app/components/transaction/transaction.component.scss
index 232a2cacb..1706dfcab 100644
--- a/frontend/src/app/components/transaction/transaction.component.scss
+++ b/frontend/src/app/components/transaction/transaction.component.scss
@@ -287,37 +287,21 @@
 }
 
 .accelerate {
-  display: flex !important;
-  align-self: auto;
-  margin-left: auto;
-  background-color: var(--tertiary);
-  @media (max-width: 849px) {
-    margin-left: 5px;
-  }
+  @media (min-width: 850px) {
+    margin-left: auto;
+  }  
 }
 
 .etaDeepMempool {
-  justify-content: flex-end;
   flex-wrap: wrap;
-  align-content: center;
-  @media (max-width: 995px) {
-    justify-content: left !important;
-  }
   @media (max-width: 849px) {
     justify-content: right !important;
   }
 }
 
 .accelerateDeepMempool {
-  align-self: auto;
-  margin-left: auto;
   background-color: var(--tertiary);
-  @media (max-width: 995px) {
-    margin-left: 0px;
-  }
-  @media (max-width: 849px) {
-    margin-left: 5px;
-  }
+  margin-left: 5px;
 }
 
 .goggles-icon {
@@ -335,4 +319,9 @@
 
 .oobFees {
   color: #905cf4;
+}
+
+.disabled {
+  opacity: 0.5;
+  pointer-events: none;
 }
\ No newline at end of file
diff --git a/frontend/src/app/components/transaction/transaction.component.ts b/frontend/src/app/components/transaction/transaction.component.ts
index 4d0818c72..43c7d9b56 100644
--- a/frontend/src/app/components/transaction/transaction.component.ts
+++ b/frontend/src/app/components/transaction/transaction.component.ts
@@ -906,7 +906,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
       this.segwitEnabled = !this.tx.status.confirmed || isFeatureActive(this.stateService.network, this.tx.status.block_height, 'segwit');
       this.taprootEnabled = !this.tx.status.confirmed || isFeatureActive(this.stateService.network, this.tx.status.block_height, 'taproot');
       this.rbfEnabled = !this.tx.status.confirmed || isFeatureActive(this.stateService.network, this.tx.status.block_height, 'rbf');
-      this.tx.flags = getTransactionFlags(this.tx);
+      this.tx.flags = getTransactionFlags(this.tx, null, null, this.tx.status?.block_time, this.stateService.network);
       this.filters = this.tx.flags ? toFilters(this.tx.flags).filter(f => f.txPage) : [];
       this.checkAccelerationEligibility();
     } else {
diff --git a/frontend/src/app/interfaces/node-api.interface.ts b/frontend/src/app/interfaces/node-api.interface.ts
index 4d2ffc09a..3e38ff88b 100644
--- a/frontend/src/app/interfaces/node-api.interface.ts
+++ b/frontend/src/app/interfaces/node-api.interface.ts
@@ -239,7 +239,7 @@ export interface TransactionStripped {
   acc?: boolean;
   flags?: number | null;
   time?: number;
-  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'added_prioritized' | 'prioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
+  status?: 'found' | 'missing' | 'sigop' | 'fresh' | 'freshcpfp' | 'added' | 'added_prioritized' | 'prioritized' | 'added_deprioritized' | 'deprioritized' | 'censored' | 'selected' | 'rbf' | 'accelerated';
   context?: 'projected' | 'actual';
 }
 
diff --git a/frontend/src/app/interfaces/websocket.interface.ts b/frontend/src/app/interfaces/websocket.interface.ts
index 35e0ffa09..7552224f5 100644
--- a/frontend/src/app/interfaces/websocket.interface.ts
+++ b/frontend/src/app/interfaces/websocket.interface.ts
@@ -72,11 +72,13 @@ export interface MempoolBlockWithTransactions extends MempoolBlock {
 }
 
 export interface MempoolBlockDelta {
+  block: number;
   added: TransactionStripped[];
   removed: string[];
   changed: { txid: string, rate: number, flags: number, acc: boolean }[];
 }
 export interface MempoolBlockState {
+  block: number;
   transactions: TransactionStripped[];
 }
 export type MempoolBlockUpdate = MempoolBlockDelta | MempoolBlockState;
diff --git a/frontend/src/app/services/state.service.ts b/frontend/src/app/services/state.service.ts
index 365c1daa2..13ffc7fc5 100644
--- a/frontend/src/app/services/state.service.ts
+++ b/frontend/src/app/services/state.service.ts
@@ -5,7 +5,7 @@ import { AccelerationDelta, HealthCheckHost, IBackendInfo, MempoolBlock, Mempool
 import { Acceleration, AccelerationPosition, BlockExtended, CpfpInfo, DifficultyAdjustment, MempoolPosition, OptimizedMempoolStats, RbfTree, TransactionStripped } from '../interfaces/node-api.interface';
 import { Router, NavigationStart } from '@angular/router';
 import { isPlatformBrowser } from '@angular/common';
-import { filter, map, scan, shareReplay } from 'rxjs/operators';
+import { filter, map, scan, share, shareReplay } from 'rxjs/operators';
 import { StorageService } from './storage.service';
 import { hasTouchScreen } from '../shared/pipes/bytes-pipe/utils';
 import { ActiveFilter } from '../shared/filters.utils';
@@ -131,6 +131,7 @@ export class StateService {
   latestBlockHeight = -1;
   blocks: BlockExtended[] = [];
   mempoolSequence: number;
+  mempoolBlockState: { block: number, transactions: { [txid: string]: TransactionStripped} };
 
   backend$ = new BehaviorSubject<'esplora' | 'electrum' | 'none'>('esplora');
   networkChanged$ = new ReplaySubject<string>(1);
@@ -143,7 +144,7 @@ export class StateService {
   mempoolInfo$ = new ReplaySubject<MempoolInfo>(1);
   mempoolBlocks$ = new ReplaySubject<MempoolBlock[]>(1);
   mempoolBlockUpdate$ = new Subject<MempoolBlockUpdate>();
-  liveMempoolBlockTransactions$: Observable<{ [txid: string]: TransactionStripped}>;
+  liveMempoolBlockTransactions$: Observable<{ block: number, transactions: { [txid: string]: TransactionStripped} }>;
   accelerations$ = new Subject<AccelerationDelta>();
   liveAccelerations$: Observable<Acceleration[]>;
   txConfirmed$ = new Subject<[string, BlockExtended]>();
@@ -231,29 +232,40 @@ export class StateService {
       }
     });
 
-    this.liveMempoolBlockTransactions$ = this.mempoolBlockUpdate$.pipe(scan((transactions: { [txid: string]: TransactionStripped }, change: MempoolBlockUpdate): { [txid: string]: TransactionStripped } => {
+    this.liveMempoolBlockTransactions$ = this.mempoolBlockUpdate$.pipe(scan((acc: { block: number, transactions: { [txid: string]: TransactionStripped } }, change: MempoolBlockUpdate): { block: number, transactions: { [txid: string]: TransactionStripped } } => {
       if (isMempoolState(change)) {
         const txMap = {};
         change.transactions.forEach(tx => {
           txMap[tx.txid] = tx;
         });
-        return txMap;
+        this.mempoolBlockState = {
+          block: change.block,
+          transactions: txMap
+        };
+        return this.mempoolBlockState;
       } else {
         change.added.forEach(tx => {
-          transactions[tx.txid] = tx;
+          acc.transactions[tx.txid] = tx;
         });
         change.removed.forEach(txid => {
-          delete transactions[txid];
+          delete acc.transactions[txid];
         });
         change.changed.forEach(tx => {
-          if (transactions[tx.txid]) {
-            transactions[tx.txid].rate = tx.rate;
-            transactions[tx.txid].acc = tx.acc;
+          if (acc.transactions[tx.txid]) {
+            acc.transactions[tx.txid].rate = tx.rate;
+            acc.transactions[tx.txid].acc = tx.acc;
           }
         });
-        return transactions;
+        this.mempoolBlockState = {
+          block: change.block,
+          transactions: acc.transactions
+        };
+        return this.mempoolBlockState;
       }
-    }, {}));
+    }, {}),
+    share()
+    );
+    this.liveMempoolBlockTransactions$.subscribe();
 
     // Emits the full list of pending accelerations each time it changes
     this.liveAccelerations$ = this.accelerations$.pipe(
diff --git a/frontend/src/app/services/websocket.service.ts b/frontend/src/app/services/websocket.service.ts
index fd67ddb2e..39e9d1af3 100644
--- a/frontend/src/app/services/websocket.service.ts
+++ b/frontend/src/app/services/websocket.service.ts
@@ -35,6 +35,7 @@ export class WebsocketService {
   private isTrackingAddresses: string[] | false = false;
   private isTrackingAccelerations: boolean = false;
   private trackingMempoolBlock: number;
+  private stoppingTrackMempoolBlock: any | null = null;
   private latestGitCommit = '';
   private onlineCheckTimeout: number;
   private onlineCheckTimeoutTwo: number;
@@ -203,19 +204,31 @@ export class WebsocketService {
     this.websocketSubject.next({ 'track-asset': 'stop' });
   }
 
-  startTrackMempoolBlock(block: number, force: boolean = false) {
+  startTrackMempoolBlock(block: number, force: boolean = false): boolean {
+    if (this.stoppingTrackMempoolBlock) {
+      clearTimeout(this.stoppingTrackMempoolBlock);
+    }
     // skip duplicate tracking requests
     if (force || this.trackingMempoolBlock !== block) {
       this.websocketSubject.next({ 'track-mempool-block': block });
       this.isTrackingMempoolBlock = true;
       this.trackingMempoolBlock = block;
+      return true;
     }
+    return false;
   }
 
-  stopTrackMempoolBlock() {
-    this.websocketSubject.next({ 'track-mempool-block': -1 });
+  stopTrackMempoolBlock(): void {
+    if (this.stoppingTrackMempoolBlock) {
+      clearTimeout(this.stoppingTrackMempoolBlock);
+    }
     this.isTrackingMempoolBlock = false;
-    this.trackingMempoolBlock = null;
+    this.stoppingTrackMempoolBlock = setTimeout(() => {
+      this.stoppingTrackMempoolBlock = null;
+      this.websocketSubject.next({ 'track-mempool-block': -1 });
+      this.trackingMempoolBlock = null;
+      this.stateService.mempoolBlockState = null;
+    }, 2000);
   }
 
   startTrackRbf(mode: 'all' | 'fullRbf') {
@@ -424,6 +437,7 @@ export class WebsocketService {
         if (response['projected-block-transactions'].blockTransactions) {
           this.stateService.mempoolSequence = response['projected-block-transactions'].sequence;
           this.stateService.mempoolBlockUpdate$.next({
+            block: this.trackingMempoolBlock,
             transactions: response['projected-block-transactions'].blockTransactions.map(uncompressTx),
           });
         } else if (response['projected-block-transactions'].delta) {
@@ -432,7 +446,7 @@ export class WebsocketService {
             this.startTrackMempoolBlock(this.trackingMempoolBlock, true);
           } else {
             this.stateService.mempoolSequence = response['projected-block-transactions'].sequence;
-            this.stateService.mempoolBlockUpdate$.next(uncompressDeltaChange(response['projected-block-transactions'].delta));
+            this.stateService.mempoolBlockUpdate$.next(uncompressDeltaChange(this.trackingMempoolBlock, response['projected-block-transactions'].delta));
           }
         }
       }
diff --git a/frontend/src/app/shared/address-utils.ts b/frontend/src/app/shared/address-utils.ts
index 92646af14..59c85014b 100644
--- a/frontend/src/app/shared/address-utils.ts
+++ b/frontend/src/app/shared/address-utils.ts
@@ -17,6 +17,7 @@ export type AddressType = 'fee'
   | 'v0_p2wsh'
   | 'v1_p2tr'
   | 'confidential'
+  | 'anchor'
   | 'unknown'
 
 const ADDRESS_PREFIXES = {
@@ -188,6 +189,12 @@ export class AddressTypeInfo {
         const v = vin[0];
         this.processScript(new ScriptInfo('scriptpubkey', v.prevout.scriptpubkey, v.prevout.scriptpubkey_asm));
       }
+    } else if (this.type === 'unknown') {
+      for (const v of vin) {
+        if (v.prevout?.scriptpubkey === '51024e73') {
+          this.type = 'anchor';
+        }
+      }
     }
     // and there's nothing more to learn from processing inputs for other types
   }
@@ -197,6 +204,10 @@ export class AddressTypeInfo {
       if (!this.scripts.size) {
         this.processScript(new ScriptInfo('scriptpubkey', output.scriptpubkey, output.scriptpubkey_asm));
       }
+    } else if (this.type === 'unknown') {
+      if (output.scriptpubkey === '51024e73') {
+        this.type = 'anchor';
+      }
     }
   }
 
diff --git a/frontend/src/app/shared/common.utils.ts b/frontend/src/app/shared/common.utils.ts
index 697b11b5e..8c69c2319 100644
--- a/frontend/src/app/shared/common.utils.ts
+++ b/frontend/src/app/shared/common.utils.ts
@@ -170,8 +170,9 @@ export function uncompressTx(tx: TransactionCompressed): TransactionStripped {
   };
 }
 
-export function uncompressDeltaChange(delta: MempoolBlockDeltaCompressed): MempoolBlockDelta {
+export function uncompressDeltaChange(block: number, delta: MempoolBlockDeltaCompressed): MempoolBlockDelta {
   return {
+    block,
     added: delta.added.map(uncompressTx),
     removed: delta.removed,
     changed: delta.changed.map(tx => ({
diff --git a/frontend/src/app/shared/components/address-type/address-type.component.html b/frontend/src/app/shared/components/address-type/address-type.component.html
index fe4286689..598c21a6e 100644
--- a/frontend/src/app/shared/components/address-type/address-type.component.html
+++ b/frontend/src/app/shared/components/address-type/address-type.component.html
@@ -20,6 +20,9 @@
   @case ('multisig') {
     <span i18n="address.bare-multisig">bare multisig</span>
   }
+  @case ('anchor') {
+    <span>anchor</span>
+  }
   @case (null) {
     <span>unknown</span>
   }
diff --git a/frontend/src/app/shared/components/global-footer/global-footer.component.html b/frontend/src/app/shared/components/global-footer/global-footer.component.html
index a2e7286e0..fbc2c89eb 100644
--- a/frontend/src/app/shared/components/global-footer/global-footer.component.html
+++ b/frontend/src/app/shared/components/global-footer/global-footer.component.html
@@ -27,23 +27,27 @@
           <div class="selector">
             <app-rate-unit-selector></app-rate-unit-selector>
           </div>
+          <div class="selector d-none" [ngClass]="isServicesPage ? 'd-lg-flex' : 'd-md-flex'">
+            <app-amount-selector></app-amount-selector>
+          </div>
           @if (!env.customize?.theme) {
-            <div class="selector d-none d-sm-flex">
+            <div class="selector d-none" [ngClass]="isServicesPage ? 'd-lg-flex' : 'd-md-flex'">
               <app-theme-selector></app-theme-selector>
             </div>
           }
-          <a *ngIf="stateService.isMempoolSpaceBuild" class="btn btn-purple sponsor d-none d-sm-flex justify-content-center" [routerLink]="['/login']">
+          <a *ngIf="stateService.isMempoolSpaceBuild" class="btn btn-purple sponsor d-none justify-content-center" [ngClass]="isServicesPage ? 'd-lg-flex' : 'd-md-flex'" [routerLink]="['/login']">
             <span *ngIf="user" i18n="shared.my-account" class="nowrap">My Account</span>
             <span *ngIf="!user" i18n="shared.sign-in" class="nowrap">Sign In</span>
           </a>
         </div>
         @if (!env.customize?.theme) {
-          <div class="selector d-flex d-sm-none justify-content-center ml-auto mr-auto mt-0">
-            <app-theme-selector></app-theme-selector>
+          <div class="selector d-flex justify-content-center ml-auto mr-auto mt-0" [ngClass]="isServicesPage ? 'd-lg-none' : 'd-md-none'">
+            <app-amount-selector class="add-margin"></app-amount-selector>
+            <app-theme-selector class="add-margin"></app-theme-selector>
           </div>
         }
         @if (!enterpriseInfo?.footer_img) {
-          <a *ngIf="stateService.isMempoolSpaceBuild" class="btn btn-purple sponsor d-flex d-sm-none justify-content-center ml-auto mr-auto mt-0 mb-2" [routerLink]="['/login']">
+          <a *ngIf="stateService.isMempoolSpaceBuild" class="btn btn-purple sponsor d-flex justify-content-center ml-auto mr-auto mt-0 mb-2" [ngClass]="isServicesPage ? 'd-lg-none' : 'd-md-none'" [routerLink]="['/login']">
             <span *ngIf="user" i18n="shared.my-account" class="nowrap">My Account</span>
             <span *ngIf="!user" i18n="shared.sign-in" class="nowrap">Sign In</span>
           </a>
diff --git a/frontend/src/app/shared/components/global-footer/global-footer.component.scss b/frontend/src/app/shared/components/global-footer/global-footer.component.scss
index e0daf4f4c..bf47d5489 100644
--- a/frontend/src/app/shared/components/global-footer/global-footer.component.scss
+++ b/frontend/src/app/shared/components/global-footer/global-footer.component.scss
@@ -76,6 +76,11 @@ footer .selector {
   display: inline-block;
 }
 
+footer .add-margin {
+  margin-left: 5px;
+  margin-right: 5px;
+}
+
 footer .row.link-tree {
   max-width: 1140px;
   margin: 0 auto;
@@ -154,7 +159,7 @@ footer .nowrap {
   display: block;
 }
 
-@media (min-width: 951px) {
+@media (min-width: 1020px) {
   :host-context(.ltr-layout) .language-selector {
     float: right !important;
   }
@@ -172,7 +177,24 @@ footer .nowrap {
 }
 
 .services {
-  @media (min-width: 951px) and (max-width: 1147px) {
+  @media (min-width: 1300px) {
+    :host-context(.ltr-layout) .language-selector {
+      float: right !important;
+    }
+    :host-context(.rtl-layout) .language-selector {
+      float: left !important;
+    }
+  
+    .explore-tagline-desktop {
+      display: block;
+    }
+  
+    .explore-tagline-mobile {
+      display: none;
+    }
+  }
+
+  @media (max-width: 1300px) {
     :host-context(.ltr-layout) .services .language-selector {
       float: none !important;
     }
@@ -248,7 +270,7 @@ footer .nowrap {
 
 }
 
-@media (max-width: 950px) {
+@media (max-width: 1019px) {
 
   .main-logo {
     width: 220px;
@@ -287,7 +309,7 @@ footer .nowrap {
   }
 }
 
-@media (max-width: 1147px) {
+@media (max-width: 1300px) {
 
   .services.main-logo {
     width: 220px;
diff --git a/frontend/src/app/shared/script.utils.ts b/frontend/src/app/shared/script.utils.ts
index 171112dcc..731e0051b 100644
--- a/frontend/src/app/shared/script.utils.ts
+++ b/frontend/src/app/shared/script.utils.ts
@@ -166,6 +166,7 @@ export const ScriptTemplates: { [type: string]: (...args: any) => ScriptTemplate
   ln_anchor: () => ({ type: 'ln_anchor', label: 'Lightning Anchor' }),
   ln_anchor_swept: () => ({ type: 'ln_anchor_swept', label: 'Swept Lightning Anchor' }),
   multisig: (m: number, n: number) => ({ type: 'multisig', m, n, label: $localize`:@@address-label.multisig:Multisig ${m}:multisigM: of ${n}:multisigN:` }),
+  anchor: () => ({ type: 'anchor', label: 'anchor' }),
 };
 
 export class ScriptInfo {
@@ -266,7 +267,7 @@ export function parseMultisigScript(script: string): undefined | { m: number, n:
   if (!opN) {
     return;
   }
-  if (!opN.startsWith('OP_PUSHNUM_')) {
+  if (opN !== 'OP_0' && !opN.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const n = parseInt(opN.match(/[0-9]+/)?.[0] || '', 10);
@@ -286,7 +287,7 @@ export function parseMultisigScript(script: string): undefined | { m: number, n:
   if (!opM) {
     return;
   }
-  if (!opM.startsWith('OP_PUSHNUM_')) {
+  if (opM !== 'OP_0' && !opM.startsWith('OP_PUSHNUM_')) {
     return;
   }
   const m = parseInt(opM.match(/[0-9]+/)?.[0] || '', 10);
diff --git a/frontend/src/app/shared/shared.module.ts b/frontend/src/app/shared/shared.module.ts
index 2d5b4d0f9..0e37bc9d5 100644
--- a/frontend/src/app/shared/shared.module.ts
+++ b/frontend/src/app/shared/shared.module.ts
@@ -4,7 +4,7 @@ import { NgbCollapseModule, NgbTypeaheadModule } from '@ng-bootstrap/ng-bootstra
 import { FontAwesomeModule, FaIconLibrary } from '@fortawesome/angular-fontawesome';
 import { faFilter, faAngleDown, faAngleUp, faAngleRight, faAngleLeft, faBolt, faChartArea, faCogs, faCubes, faHammer, faDatabase, faExchangeAlt, faInfoCircle,
   faLink, faList, faSearch, faCaretUp, faCaretDown, faTachometerAlt, faThList, faTint, faTv, faClock, faAngleDoubleDown, faSortUp, faAngleDoubleUp, faChevronDown,
-  faFileAlt, faRedoAlt, faArrowAltCircleRight, faExternalLinkAlt, faBook, faListUl, faDownload, faQrcode, faArrowRightArrowLeft, faArrowsRotate, faCircleLeft, faFastForward, faWallet, faUserClock, faWrench, faUserFriends, faQuestionCircle, faHistory, faSignOutAlt, faKey, faSuitcase, faIdCardAlt, faNetworkWired, faUserCheck, faCircleCheck, faUserCircle, faCheck, faRocket, faScaleBalanced, faHourglassStart, faHourglassHalf, faHourglassEnd, faWandMagicSparkles, faFaucetDrip, faTimeline, faCircleXmark} from '@fortawesome/free-solid-svg-icons';
+  faFileAlt, faRedoAlt, faArrowAltCircleRight, faExternalLinkAlt, faBook, faListUl, faDownload, faQrcode, faArrowRightArrowLeft, faArrowsRotate, faCircleLeft, faFastForward, faWallet, faUserClock, faWrench, faUserFriends, faQuestionCircle, faHistory, faSignOutAlt, faKey, faSuitcase, faIdCardAlt, faNetworkWired, faUserCheck, faCircleCheck, faUserCircle, faCheck, faRocket, faScaleBalanced, faHourglassStart, faHourglassHalf, faHourglassEnd, faWandMagicSparkles, faFaucetDrip, faTimeline, faCircleXmark, faCalendarCheck } from '@fortawesome/free-solid-svg-icons';
 import { InfiniteScrollModule } from 'ngx-infinite-scroll';
 import { MenuComponent } from '../components/menu/menu.component';
 import { PreviewTitleComponent } from '../components/master-page-preview/preview-title.component';
@@ -35,6 +35,7 @@ import { LanguageSelectorComponent } from '../components/language-selector/langu
 import { FiatSelectorComponent } from '../components/fiat-selector/fiat-selector.component';
 import { RateUnitSelectorComponent } from '../components/rate-unit-selector/rate-unit-selector.component';
 import { ThemeSelectorComponent } from '../components/theme-selector/theme-selector.component';
+import { AmountSelectorComponent } from '../components/amount-selector/amount-selector.component';
 import { BrowserOnlyDirective } from './directives/browser-only.directive';
 import { ServerOnlyDirective } from './directives/server-only.directive';
 import { ColoredPriceDirective } from './directives/colored-price.directive';
@@ -131,6 +132,7 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     FiatSelectorComponent,
     ThemeSelectorComponent,
     RateUnitSelectorComponent,
+    AmountSelectorComponent,
     ScriptpubkeyTypePipe,
     RelativeUrlPipe,
     NoSanitizePipe,
@@ -278,6 +280,7 @@ import { OnlyVsizeDirective, OnlyWeightDirective } from './components/weight-dir
     FiatSelectorComponent,
     RateUnitSelectorComponent,
     ThemeSelectorComponent,
+    AmountSelectorComponent,
     ScriptpubkeyTypePipe,
     RelativeUrlPipe,
     Hex2asciiPipe,
@@ -440,5 +443,6 @@ export class SharedModule {
     library.addIcons(faFaucetDrip);
     library.addIcons(faTimeline);
     library.addIcons(faCircleXmark);
+    library.addIcons(faCalendarCheck);
   }
 }
diff --git a/frontend/src/app/shared/transaction.utils.ts b/frontend/src/app/shared/transaction.utils.ts
index 9d9cd801b..bbf28a250 100644
--- a/frontend/src/app/shared/transaction.utils.ts
+++ b/frontend/src/app/shared/transaction.utils.ts
@@ -1,10 +1,10 @@
 import { TransactionFlags } from './filters.utils';
 import { getVarIntLength, opcodes, parseMultisigScript, isPoint } from './script.utils';
 import { Transaction } from '../interfaces/electrs.interface';
-import { CpfpInfo, RbfInfo } from '../interfaces/node-api.interface';
+import { CpfpInfo, RbfInfo, TransactionStripped } from '../interfaces/node-api.interface';
+import { StateService } from '../services/state.service';
 
 // Bitcoin Core default policy settings
-const TX_MAX_STANDARD_VERSION = 2;
 const MAX_STANDARD_TX_WEIGHT = 400_000;
 const MAX_BLOCK_SIGOPS_COST = 80_000;
 const MAX_STANDARD_TX_SIGOPS_COST = (MAX_BLOCK_SIGOPS_COST / 5);
@@ -89,10 +89,13 @@ export function isDERSig(w: string): boolean {
  *
  * returns true early if any standardness rule is violated, otherwise false
  * (except for non-mandatory-script-verify-flag and p2sh script evaluation rules which are *not* enforced)
+ *
+ * As standardness rules change, we'll need to apply the rules in force *at the time* to older blocks.
+ * For now, just pull out individual rules into versioned functions where necessary.
  */
-export function isNonStandard(tx: Transaction): boolean {
+export function isNonStandard(tx: Transaction, height?: number, network?: string): boolean {
   // version
-  if (tx.version > TX_MAX_STANDARD_VERSION) {
+  if (isNonStandardVersion(tx, height, network)) {
     return true;
   }
 
@@ -139,6 +142,8 @@ export function isNonStandard(tx: Transaction): boolean {
       }
     } else if (['unknown', 'provably_unspendable', 'empty'].includes(vin.prevout?.scriptpubkey_type || '')) {
       return true;
+    } else if (isNonStandardAnchor(tx, height, network)) {
+      return true;
     }
     // TODO: bad-witness-nonstandard
   }
@@ -203,6 +208,51 @@ export function isNonStandard(tx: Transaction): boolean {
   return false;
 }
 
+// Individual versioned standardness rules
+
+const V3_STANDARDNESS_ACTIVATION_HEIGHT = {
+  'testnet4': 42_000,
+  'testnet': 2_900_000,
+  'signet': 211_000,
+  '': 863_500,
+};
+function isNonStandardVersion(tx: Transaction, height?: number, network?: string): boolean {
+  let TX_MAX_STANDARD_VERSION = 3;
+  if (
+    height != null
+    && network != null
+    && V3_STANDARDNESS_ACTIVATION_HEIGHT[network]
+    && height <= V3_STANDARDNESS_ACTIVATION_HEIGHT[network]
+  ) {
+    // V3 transactions were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+    TX_MAX_STANDARD_VERSION = 2;
+  }
+
+  if (tx.version > TX_MAX_STANDARD_VERSION) {
+    return true;
+  }
+  return false;
+}
+
+const ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT = {
+  'testnet4': 42_000,
+  'testnet': 2_900_000,
+  'signet': 211_000,
+  '': 863_500,
+};
+function isNonStandardAnchor(tx: Transaction, height?: number, network?: string): boolean {
+  if (
+    height != null
+    && network != null
+    && ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[network]
+    && height <= ANCHOR_STANDARDNESS_ACTIVATION_HEIGHT[network]
+  ) {
+    // anchor outputs were non-standard to spend before v28.x (scheduled for 2024/09/30 https://github.com/bitcoin/bitcoin/issues/29891)
+    return true;
+  }
+  return false;
+}
+
 // A witness program is any valid scriptpubkey that consists of a 1-byte push opcode
 // followed by a data push between 2 and 40 bytes.
 // https://github.com/bitcoin/bitcoin/blob/2c79abc7ad4850e9e3ba32a04c530155cda7f980/src/script/script.cpp#L224-L240
@@ -289,7 +339,7 @@ export function isBurnKey(pubkey: string): boolean {
   ].includes(pubkey);
 }
 
-export function getTransactionFlags(tx: Transaction, cpfpInfo?: CpfpInfo, replacement?: boolean): bigint {
+export function getTransactionFlags(tx: Transaction, cpfpInfo?: CpfpInfo, replacement?: boolean, height?: number, network?: string): bigint {
   let flags = tx.flags ? BigInt(tx.flags) : 0n;
 
   // Update variable flags (CPFP, RBF)
@@ -439,7 +489,7 @@ export function getTransactionFlags(tx: Transaction, cpfpInfo?: CpfpInfo, replac
     flags |= TransactionFlags.batch_payout;
   }
 
-  if (isNonStandard(tx)) {
+  if (isNonStandard(tx, height, network)) {
     flags |= TransactionFlags.nonstandard;
   }
 
@@ -458,4 +508,83 @@ export function getUnacceleratedFeeRate(tx: Transaction, accelerated: boolean):
   } else {
     return tx.effectiveFeePerVsize;
   }
+}
+
+export function identifyPrioritizedTransactions(transactions: TransactionStripped[]): { prioritized: string[], deprioritized: string[] } {
+  // find the longest increasing subsequence of transactions
+  // (adapted from https://en.wikipedia.org/wiki/Longest_increasing_subsequence#Efficient_algorithms)
+  // should be O(n log n)
+  const X = transactions.slice(1).reverse(); // standard block order is by *decreasing* effective fee rate, but we want to iterate in increasing order (and skip the coinbase)
+  if (X.length < 2) {
+    return { prioritized: [], deprioritized: [] };
+  }
+  const N = X.length;
+  const P: number[] = new Array(N);
+  const M: number[] = new Array(N + 1);
+  M[0] = -1; // undefined so can be set to any value
+
+  let L = 0;
+  for (let i = 0; i < N; i++) {
+    // Binary search for the smallest positive l ≤ L
+    // such that X[M[l]].effectiveFeePerVsize > X[i].effectiveFeePerVsize
+    let lo = 1;
+    let hi = L + 1;
+    while (lo < hi) {
+      const mid = lo + Math.floor((hi - lo) / 2); // lo <= mid < hi
+      if (X[M[mid]].rate > X[i].rate) {
+        hi = mid;
+      } else { // if X[M[mid]].effectiveFeePerVsize < X[i].effectiveFeePerVsize
+        lo = mid + 1;
+      }
+    }
+
+    // After searching, lo == hi is 1 greater than the
+    // length of the longest prefix of X[i]
+    const newL = lo;
+
+    // The predecessor of X[i] is the last index of
+    // the subsequence of length newL-1
+    P[i] = M[newL - 1];
+    M[newL] = i;
+
+    if (newL > L) {
+      // If we found a subsequence longer than any we've
+      // found yet, update L
+      L = newL;
+    }
+  }
+
+  // Reconstruct the longest increasing subsequence
+  // It consists of the values of X at the L indices:
+  // ..., P[P[M[L]]], P[M[L]], M[L]
+  const LIS: TransactionStripped[] = new Array(L);
+  let k = M[L];
+  for (let j = L - 1; j >= 0; j--) {
+    LIS[j] = X[k];
+    k = P[k];
+  }
+
+  const lisMap = new Map<string, number>();
+  LIS.forEach((tx, index) => lisMap.set(tx.txid, index));
+
+  const prioritized: string[] = [];
+  const deprioritized: string[] = [];
+
+  let lastRate = 0;
+
+  for (const tx of X) {
+    if (lisMap.has(tx.txid)) {
+      lastRate = tx.rate;
+    } else {
+      if (Math.abs(tx.rate - lastRate) < 0.1) {
+        // skip if the rate is almost the same as the previous transaction
+      } else if (tx.rate <= lastRate) {
+        prioritized.push(tx.txid);
+      } else {
+        deprioritized.push(tx.txid);
+      }
+    }
+  }
+
+  return { prioritized, deprioritized };
 }
\ No newline at end of file
diff --git a/frontend/src/resources/profile/bitkey.svg b/frontend/src/resources/profile/bitkey.svg
new file mode 100644
index 000000000..875436402
--- /dev/null
+++ b/frontend/src/resources/profile/bitkey.svg
@@ -0,0 +1,3 @@
+<svg width="212" height="450" viewBox="0 0 212 450" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M114.005 2.14659C109.052 -0.71553 102.948 -0.715531 97.9948 2.14659L7.99481 54.1531C3.04732 57.012 0 62.2924 0 68.0065V172.043C0 177.758 3.04733 183.038 7.99482 185.897L69.0247 221.163C73.9722 224.022 77.0195 229.302 77.0195 235.016V433.998V437.998C77.0195 444.625 82.3921 449.998 89.0195 449.998H93.0195H118.981H123.031C129.658 449.998 135.031 444.625 135.031 437.998V233.751C135.444 228.531 138.395 223.809 142.975 221.163L204.005 185.897C208.953 183.038 212 177.758 212 172.043V68.0065C212 62.2924 208.953 57.012 204.005 54.1531L114.005 2.14659ZM112.07 68.1162C108.334 65.938 103.716 65.938 99.9803 68.1162L63.9718 89.1129C60.2841 91.2631 58.0164 95.2105 58.0164 99.4793V141.68C58.0164 145.948 60.2841 149.896 63.9718 152.046L99.9803 173.043C103.716 175.221 108.334 175.221 112.07 173.043L148.078 152.046C151.766 149.896 154.034 145.948 154.034 141.68V99.4793C154.034 95.2105 151.766 91.2631 148.078 89.1129L112.07 68.1162ZM172.046 338.527C164.047 333.861 154 339.631 154 348.892L154 356L154 412V419.108C154 428.369 164.047 434.14 172.046 429.473L196.046 415.473C199.733 413.322 202 409.376 202 405.108V362.892C202 358.624 199.733 354.678 196.046 352.527L172.046 338.527Z" fill="white"/>
+</svg>
diff --git a/frontend/src/resources/profile/leather.svg b/frontend/src/resources/profile/leather.svg
new file mode 100644
index 000000000..a909606fa
--- /dev/null
+++ b/frontend/src/resources/profile/leather.svg
@@ -0,0 +1,3 @@
+<svg width="387" height="377" viewBox="-58.05 -56.55 503.1 490.1" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M249.327 137.966C283.745 132.618 333.52 96.2553 333.52 67.9135C333.52 59.3574 326.637 53.4752 316.576 53.4752C297.513 53.4752 265.212 82.3518 249.327 137.966ZM89.9409 278.606C44.9317 278.606 41.225 323.525 86.2343 323.525C106.356 323.525 130.714 315.504 143.422 301.065C124.889 285.023 109.533 278.606 89.9409 278.606ZM376.411 259.355C379.059 334.755 340.934 377 276.332 377C238.207 377 219.144 362.562 178.371 335.824C157.19 359.353 116.946 377 83.5867 377C-31.3192 377 -26.5536 229.943 90.4704 229.943C114.828 229.943 135.48 236.36 161.956 252.938L179.43 191.441C107.415 171.655 71.4077 116.041 106.886 36.3631H164.074C132.303 89.3035 154.013 133.153 194.256 137.966C215.967 60.4269 262.565 0 324.518 0C359.467 0 387.002 22.9943 387.002 64.705C387.002 131.549 300.161 186.094 234.5 191.441L207.494 287.162C238.207 322.99 323.459 357.749 323.459 259.355H376.411Z" fill="#F5F1ED"/>
+</svg>
\ No newline at end of file
diff --git a/production/README.md b/production/README.md
index 3f1b24d22..2805cde81 100644
--- a/production/README.md
+++ b/production/README.md
@@ -84,11 +84,11 @@ pkg install -y zsh sudo git screen curl wget neovim rsync nginx openssl openssh-
 
 ### Node.js + npm
 
-Build Node.js v16.16.0 and npm v8 from source using `nvm`:
+Build Node.js v20.17.0 and npm v9 from source using `nvm`:
 ```
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | zsh
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.0/install.sh | zsh
 source $HOME/.zshrc
-nvm install v16.16.0 --shared-zlib
+nvm install v20.17.0 --shared-zlib
 nvm alias default node
 ```
 
diff --git a/production/bitcoin.conf b/production/bitcoin.conf
index 1b4eb1171..63baa32b5 100644
--- a/production/bitcoin.conf
+++ b/production/bitcoin.conf
@@ -15,6 +15,7 @@ rpcpassword=__BITCOIN_RPC_PASS__
 whitelist=127.0.0.1
 whitelist=103.99.168.0/22
 whitelist=2401:b140::/32
+blocksxor=0
 #uacomment=@wiz
 
 [main]
diff --git a/production/install b/production/install
index 30754863c..bf7153557 100755
--- a/production/install
+++ b/production/install
@@ -392,9 +392,9 @@ DEBIAN_UNFURL_PKG+=(libxdamage-dev libxrandr-dev libgbm-dev libpango1.0-dev liba
 # packages needed for mempool ecosystem
 FREEBSD_PKG=()
 FREEBSD_PKG+=(zsh sudo git git-lfs screen curl wget calc neovim)
-FREEBSD_PKG+=(openssh-portable py39-pip rust llvm10 jq base64 libzmq4)
+FREEBSD_PKG+=(openssh-portable py311-pip rust llvm18 jq base64 libzmq4)
 FREEBSD_PKG+=(boost-libs autoconf automake gmake gcc libevent libtool pkgconf)
-FREEBSD_PKG+=(nginx rsync py39-certbot-nginx mariadb1011-server keybase)
+FREEBSD_PKG+=(nginx rsync py311-certbot-nginx mariadb1011-server)
 FREEBSD_PKG+=(geoipupdate redis)
 
 FREEBSD_UNFURL_PKG=()
diff --git a/production/mempool-reset-all b/production/mempool-reset-all
index 22f004610..d7e8ba249 100755
--- a/production/mempool-reset-all
+++ b/production/mempool-reset-all
@@ -1,3 +1,5 @@
 #!/usr/bin/env zsh
-rm $HOME/*/backend/mempool-config.json
-rm $HOME/*/frontend/mempool-frontend-config.json
+rm -f $HOME/*/backend/mempool-config.json
+rm -f $HOME/*/frontend/mempool-frontend-config.json
+rm -f $HOME/*/frontend/projects/mempool/mempool-frontend-config.json
+exit 0
diff --git a/unfurler/package-lock.json b/unfurler/package-lock.json
index 8c6e77883..799148486 100644
--- a/unfurler/package-lock.json
+++ b/unfurler/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mempool-unfurl",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mempool-unfurl",
-      "version": "3.0.0-rc1",
+      "version": "3.0.0",
       "dependencies": {
         "@types/node": "^16.11.41",
         "ejs": "^3.1.10",
diff --git a/unfurler/package.json b/unfurler/package.json
index c0d372e6f..bf3dad55b 100644
--- a/unfurler/package.json
+++ b/unfurler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mempool-unfurl",
-  "version": "3.0.0-rc1",
+  "version": "3.1.0-dev",
   "description": "Renderer for mempool open graph link preview images",
   "repository": {
     "type": "git",