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update witness commit

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Ben 2023-07-09 11:47:07 -04:00
parent e6e51dd673
commit 4b4b04a52c
1 changed files with 5 additions and 0 deletions
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5
src/models/MiningJob.ts
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@ -105,6 +105,11 @@ export class MiningJob {
testBlock.merkleRoot = this.calculateMerkleRootHash(testBlock.transactions[0].getHash(false), this.merkle_branch);
testBlock.witnessCommit = bitcoinjs.Block.calculateMerkleRoot(this.block.transactions, true);
const segwitMagicBits = Buffer.from('aa21a9ed', 'hex');
// 32-byte - Commitment hash: Double-SHA256(witness root hash|witness reserved value)
const commitmentHash = this.sha256(this.sha256(Buffer.concat([testBlock.witnessCommit, testBlock.transactions[0].ins[0].witness[0]])));
testBlock.transactions[0].outs[testBlock.transactions[0].outs.length - 1].script = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([segwitMagicBits, commitmentHash])])
testBlock.timestamp = timestamp;
return testBlock;