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fix the coinbase tx

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This commit is contained in:
Ben Wilson
2023-06-27 21:45:37 -04:00
parent d37a67aba6
commit 6b0520e73f
1 changed files with 8 additions and 9 deletions
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src/models/MiningJob.ts
+8 -9
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@@ -47,14 +47,16 @@ export class MiningJob {
// 32-byte - Commitment hash: Double-SHA256(witness root hash|witness reserved value)
const commitmentHash = this.sha256(this.sha256(this.block.witnessCommit));
// 39th byte onwards: Optional data with no consensus meaning
coinbaseTransaction.outs[0].script = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([segwitMagicBits, commitmentHash])]);
coinbaseTransaction.ins[0].script = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([segwitMagicBits, commitmentHash, Buffer.from('00000000' + '00000000', 'hex')])]);
// get the non-witness coinbase tx
//@ts-ignore
const serializedCoinbaseTx = coinbaseTransaction.__toBuffer().toString('hex');
const blockHeightScript = `03${this.blockTemplate.height.toString(16).padStart(8, '0')}` + '00000000' + '00000000';
const partOneIndex = serializedCoinbaseTx.indexOf(blockHeightScript) + blockHeightScript.length;
const inputScript = coinbaseTransaction.ins[0].script.toString('hex');
const partOneIndex = serializedCoinbaseTx.indexOf(inputScript) + inputScript.length;
const coinbasePart1 = serializedCoinbaseTx.slice(0, partOneIndex);
const coinbasePart2 = serializedCoinbaseTx.slice(partOneIndex);
@@ -87,9 +89,7 @@ export class MiningJob {
}
// set the nonces
const blockHeightScript = `03${this.blockTemplate.height.toString(16).padStart(8, '0')}${extraNonce}${extraNonce2}`;
const inputScript = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.from(blockHeightScript, 'hex')]);
testBlock.transactions[0].ins[0].script = inputScript;
testBlock.transactions[0].ins[0].script = Buffer.from(testBlock.transactions[0].ins[0].script.toString('hex').replace('0000000000000000', `${extraNonce}${extraNonce2}`), 'hex');
//@ts-ignore
//recompute the root
@@ -124,12 +124,11 @@ export class MiningJob {
// Set the version of the transaction
coinbaseTransaction.version = 2;
const blockHeightScript = `03${blockHeight.toString(16).padStart(8, '0')}` + '00000000' + '00000000';
const inputScript = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.from(blockHeightScript, 'hex')])
// const inputScript = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.from('00000000' + '00000000', 'hex')])
// Add the coinbase input (input with no previous output)
coinbaseTransaction.addInput(Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex'), 0xffffffff, 0xffffffff, inputScript);
coinbaseTransaction.addInput(Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex'), 0xffffffff, 0xffffffff);
// Add an output
let rewardBalance = reward;