diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index 7b69fca6c..d2487414f 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -126,12 +126,10 @@ class Blocks {
       } else {
         pool = await poolsRepository.$getUnknownPool();
       }
-      blockExtended.extras.pool = pool;
-
-      if (transactions.length > 0) {
-        const coinbase: IEsploraApi.Transaction = await bitcoinApi.$getRawTransaction(transactions[0].txid, true);
-        blockExtended.extras.coinbaseHex = coinbase.hex;
-      }
+      blockExtended.extras.pool = {
+        id: pool.id,
+        name: pool.name
+      };
     }
 
     return blockExtended;
@@ -404,13 +402,9 @@ class Blocks {
         medianFee: block?.medianFee,
         feeRange: block?.feeRange ?? [], // TODO
         reward: block?.reward,
-        coinbaseHex: block?.extras?.coinbaseHex ?? block?.coinbase_raw, // coinbase_raw for indexed block
         pool: block?.extras?.pool ?? (block?.pool_id ? {
           id: block?.pool_id,
           name: block?.pool_name,
-          link: block?.pool_link,
-          regexes: block?.pool_regexes,
-          addresses: block?.pool_addresses,
         } : undefined),
       }
     };
diff --git a/backend/src/mempool.interfaces.ts b/backend/src/mempool.interfaces.ts
index 5559c4588..2d5092145 100644
--- a/backend/src/mempool.interfaces.ts
+++ b/backend/src/mempool.interfaces.ts
@@ -1,7 +1,7 @@
 import { IEsploraApi } from './api/bitcoin/esplora-api.interface';
 
 export interface PoolTag {
-  id: number | null, // mysql row id
+  id: number, // mysql row id
   name: string,
   link: string,
   regexes: string, // JSON array
@@ -83,8 +83,10 @@ export interface BlockExtension {
   reward?: number;
   coinbaseTx?: TransactionMinerInfo;
   matchRate?: number;
-  coinbaseHex?: string;
-  pool?: PoolTag;
+  pool?: {
+    id: number;
+    name: string;
+  }
 }
 
 export interface BlockExtended extends IEsploraApi.Block {
diff --git a/backend/src/repositories/BlocksRepository.ts b/backend/src/repositories/BlocksRepository.ts
index 758ae1197..18023760f 100644
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -34,7 +34,7 @@ class BlocksRepository {
         block.size,
         block.weight,
         block.tx_count,
-        block.extras?.coinbaseHex ?? '',
+        '',
         block.difficulty,
         block.extras?.pool?.id, // Should always be set to something
         0,
diff --git a/backend/src/repositories/PoolsRepository.ts b/backend/src/repositories/PoolsRepository.ts
index d1fb0da9a..b89725452 100644
--- a/backend/src/repositories/PoolsRepository.ts
+++ b/backend/src/repositories/PoolsRepository.ts
@@ -7,7 +7,7 @@ class PoolsRepository {
    */
   public async $getPools(): Promise<PoolTag[]> {
     const connection = await DB.pool.getConnection();
-    const [rows] = await connection.query('SELECT * FROM pools;');
+    const [rows] = await connection.query('SELECT id, name, addresses, regexes FROM pools;');
     connection.release();
     return <PoolTag[]>rows;
   }
@@ -17,7 +17,7 @@ class PoolsRepository {
    */
   public async $getUnknownPool(): Promise<PoolTag> {
     const connection = await DB.pool.getConnection();
-    const [rows] = await connection.query('SELECT * FROM pools where name = "Unknown"');
+    const [rows] = await connection.query('SELECT id, name FROM pools where name = "Unknown"');
     connection.release();
     return <PoolTag>rows[0];
   }