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coinbase block height

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Ben
2023-07-03 07:20:31 -04:00
parent 61219a81cb
commit 66187f476a
1 changed files with 4 additions and 2 deletions
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src/models/MiningJob.ts
+4 -2
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@@ -42,7 +42,9 @@ export class MiningJob {
// https://github.com/bitcoin/bips/blob/master/bip-0034.mediawiki // https://github.com/bitcoin/bips/blob/master/bip-0034.mediawiki
const blockHeightScript = Buffer.from(`03${this.blockTemplate.height.toString(16).padStart(8, '0')}`, 'hex'); //const blockHeightScript = Buffer.from(`03${this.blockTemplate.height.toString(16).padStart(8, '0')}`, 'hex');
const littleEndianBlockHeight = this.convertToLittleEndian(this.blockTemplate.height.toString(16).padStart(6, '0'))
//The commitment is recorded in a scriptPubKey of the coinbase transaction. It must be at least 38 bytes, with the first 6-byte of 0x6a24aa21a9ed, that is: //The commitment is recorded in a scriptPubKey of the coinbase transaction. It must be at least 38 bytes, with the first 6-byte of 0x6a24aa21a9ed, that is:
// 1-byte - OP_RETURN (0x6a) // 1-byte - OP_RETURN (0x6a)
@@ -52,7 +54,7 @@ export class MiningJob {
// 32-byte - Commitment hash: Double-SHA256(witness root hash|witness reserved value) // 32-byte - Commitment hash: Double-SHA256(witness root hash|witness reserved value)
const commitmentHash = this.sha256(this.sha256(this.block.witnessCommit)); const commitmentHash = this.sha256(this.sha256(this.block.witnessCommit));
// 39th byte onwards: Optional data with no consensus meaning // 39th byte onwards: Optional data with no consensus meaning
coinbaseTransaction.ins[0].script = bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([blockHeightScript, Buffer.from('00000000' + '00000000', 'hex')])]); coinbaseTransaction.ins[0].script = bitcoinjs.script.compile([Buffer.concat([Buffer.from([littleEndianBlockHeight.byteLength]), littleEndianBlockHeight, Buffer.from('00000000' + '00000000', 'hex')])]);
coinbaseTransaction.addOutput(bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([segwitMagicBits, commitmentHash])]), 0); coinbaseTransaction.addOutput(bitcoinjs.script.compile([bitcoinjs.opcodes.OP_RETURN, Buffer.concat([segwitMagicBits, commitmentHash])]), 0);
// get the non-witness coinbase tx // get the non-witness coinbase tx