Instant mining pool identification from recent blocks.

refs #59

backend/src/api/blocks.ts

@@ -75,6 +75,7 @@ class Blocks {
         transactions.sort((a, b) => b.feePerVsize - a.feePerVsize);
         block.medianFee = transactions.length > 1 ? this.median(transactions.map((tx) => tx.feePerVsize)) : 0;
         block.feeRange = transactions.length > 1 ? this.getFeesInRange(transactions, 8) : [0, 0];
+        block.coinbaseTx = transactions[0];
 
         this.blocks.push(block);
         if (this.blocks.length > config.KEEP_BLOCK_AMOUNT) {

backend/src/interfaces.ts

@@ -105,6 +105,7 @@ export interface Block {
   medianFee?: number;
   feeRange?: number[];
   reward?: number;
+  coinbaseTx?: Transaction;
 }
 
 export interface Address {