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Child_Inscription.ts
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Child_Inscription.ts
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import {
Transaction,
script,
Psbt,
initEccLib,
networks,
Signer as BTCSigner,
crypto,
payments,
opcodes,
address as Address
} from "bitcoinjs-lib";
import { Taptree } from "bitcoinjs-lib/src/types";
import { ECPairFactory, ECPairAPI } from "ecpair";
import ecc from "@bitcoinerlab/secp256k1";
import axios, { AxiosResponse } from "axios";
import networkConfig from "config/network.config";
import { WIFWallet } from 'utils/WIFWallet'
import { SeedWallet } from "utils/SeedWallet";
//test
// const network = networks.testnet;
const network = networks.bitcoin;
initEccLib(ecc as any);
const ECPair: ECPairAPI = ECPairFactory(ecc);
// const seed: string = process.env.MNEMONIC as string;
// const networkType: string = networkConfig.networkType;
// const wallet = new SeedWallet({ networkType: networkType, seed: seed });
const privateKey: string = process.env.PRIVATE_KEY as string;
const networkType: string = networkConfig.networkType;
const wallet = new WIFWallet({ networkType: networkType, privateKey: privateKey });
export const contentBuffer = (content: string) => {
return Buffer.from(`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Build Your Own Recursive Ordinal</title>
</head>
<body style="margin: 0px">
<div>
<img style="width:100%;margin:0px" src="/content/${content}" />
</div>
</body>
</html>`, 'utf8')
}
const txhash: string = '9bcaa71d811e34b7176f50982712fb5f4b7726ae2084cb0f886e7eb3a4db5d69';
const txidBuffer = Buffer.from(txhash, 'hex')
const inscriptionBuffer = txidBuffer.reverse()
const pointer1: number = 546 * 1;
const pointer2: number = 546 * 2;
const pointer3: number = 546 * 3;
const pointerBuffer1: Buffer = Buffer.from(pointer1.toString(16).padStart(4, '0'), 'hex');
const pointerBuffer2: Buffer = Buffer.from(pointer2.toString(16).padStart(4, '0'), 'hex');
const pointerBuffer3: Buffer = Buffer.from(pointer3.toString(16).padStart(4, '0'), 'hex');
const content1 = '6cfd2a4ca879ba92e328acd0e2e8b0e42726bc6ff2b78d10706e138fb38b10f6i0'
const content2 = '9566bc0e79ca905bf01db55bf154acb3a04e00e8bb2e9d4903639c5badf66d42i0'
const contentBufferData1 = Buffer.from('0.364972.bitmap', 'utf8')
const contentBufferData2 = Buffer.from('1.364972.bitmap', 'utf8')
export function createChildInscriptionTapScript(): Array<Buffer> {
const metadataBuffer = Buffer.from('a26474797065644269746d61706b6465736372697074696f6e78184269746d617020436f6d6d756e697479204f72646e616c73', 'hex');
const keyPair = wallet.ecPair;
const childOrdinalStacks: any = [
toXOnly(keyPair.publicKey),
opcodes.OP_CHECKSIG,
opcodes.OP_FALSE,
opcodes.OP_IF,
Buffer.from("ord", "utf8"),
1,
1,
Buffer.concat([Buffer.from("text/html;charset=utf-8", "utf8")]),
1,
3,
inscriptionBuffer,
1,
2,
pointerBuffer1,
1,
5,
metadataBuffer,
opcodes.OP_0,
contentBufferData1,
opcodes.OP_ENDIF,
opcodes.OP_FALSE,
opcodes.OP_IF,
Buffer.from("ord", "utf8"),
1,
1,
Buffer.concat([Buffer.from("text/html;charset=utf-8", "utf8")]),
1,
3,
inscriptionBuffer,
1,
2,
pointerBuffer2,
1,
5,
metadataBuffer,
opcodes.OP_0,
contentBufferData2,
opcodes.OP_ENDIF
];
return childOrdinalStacks;
}
async function childInscribe() {
const keyPair = wallet.ecPair;
const childOrdinalStack = createChildInscriptionTapScript();
const ordinal_script = script.compile(childOrdinalStack);
const scriptTree: Taptree = {
output: ordinal_script,
};
const redeem = {
output: ordinal_script,
redeemVersion: 192,
};
const ordinal_p2tr = payments.p2tr({
internalPubkey: toXOnly(keyPair.publicKey),
network,
scriptTree,
redeem,
});
const address = ordinal_p2tr.address ?? "";
console.log("send coin to address", address);
const utxos = await waitUntilUTXO(address as string);
console.log(`Using UTXO ${utxos[0].txid}:${utxos[0].vout}`);
const psbt = new Psbt({ network });
const parentInscriptionUTXO = {
txid: txhash,
vout: 0,
value: 546
}
psbt.addInput({
hash: parentInscriptionUTXO.txid,
index: parentInscriptionUTXO.vout,
witnessUtxo: {
value: parentInscriptionUTXO.value,
script: wallet.output,
},
tapInternalKey: toXOnly(keyPair.publicKey),
});
psbt.addInput({
hash: utxos[0].txid,
index: utxos[0].vout,
tapInternalKey: toXOnly(keyPair.publicKey),
witnessUtxo: { value: utxos[0].value, script: ordinal_p2tr.output! },
tapLeafScript: [
{
leafVersion: redeem.redeemVersion,
script: redeem.output,
controlBlock: ordinal_p2tr.witness![ordinal_p2tr.witness!.length - 1],
},
],
});
const fee = 4500;
const change = utxos[0].value - 546 * 3 - fee;
psbt.addOutput({
address: "bc1pjr267uqlj79zqmv5m9vftvjp6m8fycwm8mq63497tyudq3kp3a7qh49jue", //Destination Address
value: 546,
});
psbt.addOutput({
address: "bc1pjr267uqlj79zqmv5m9vftvjp6m8fycwm8mq63497tyudq3kp3a7qh49jue", //Destination Address
value: 546,
});
psbt.addOutput({
address: "bc1pjr267uqlj79zqmv5m9vftvjp6m8fycwm8mq63497tyudq3kp3a7qh49jue", //Destination Address
value: 546,
});
psbt.addOutput({
address: "bc1pjr267uqlj79zqmv5m9vftvjp6m8fycwm8mq63497tyudq3kp3a7qh49jue", // Change address
value: change,
});
await signAndSend(keyPair, psbt);
}
childInscribe()
export async function signAndSend(
keypair: BTCSigner,
psbt: Psbt,
) {
const signer = tweakSigner(keypair, { network })
psbt.signInput(0, signer);
psbt.signInput(1, keypair);
psbt.finalizeAllInputs()
const tx = psbt.extractTransaction();
console.log(tx.virtualSize())
console.log(`Broadcasting Transaction Hex: ${tx.toHex()}`);
// const txid = await broadcast(tx.toHex());
// console.log(`Success! Txid is ${txid}`);
}
export async function waitUntilUTXO(address: string) {
return new Promise<IUTXO[]>((resolve, reject) => {
let intervalId: any;
const checkForUtxo = async () => {
try {
const response: AxiosResponse<string> = await blockstream.get(
`/address/${address}/utxo`
);
const data: IUTXO[] = response.data
? JSON.parse(response.data)
: undefined;
console.log(data);
if (data.length > 0) {
resolve(data);
clearInterval(intervalId);
}
} catch (error) {
reject(error);
clearInterval(intervalId);
}
};
intervalId = setInterval(checkForUtxo, 4000);
});
}
export async function getTx(id: string): Promise<string> {
const response: AxiosResponse<string> = await blockstream.get(
`/tx/${id}/hex`
);
return response.data;
}
const blockstream = new axios.Axios({
// baseURL: `https://mempool.space/testnet/api`,
baseURL: `https://mempool.space/api`,
});
export async function broadcast(txHex: string) {
const response: AxiosResponse<string> = await blockstream.post("/tx", txHex);
return response.data;
}
function tapTweakHash(pubKey: Buffer, h: Buffer | undefined): Buffer {
return crypto.taggedHash(
"TapTweak",
Buffer.concat(h ? [pubKey, h] : [pubKey])
);
}
function toXOnly(pubkey: Buffer): Buffer {
return pubkey.subarray(1, 33);
}
function tweakSigner(signer: any, opts: any = {}) {
let privateKey = signer.privateKey;
if (!privateKey) {
throw new Error('Private key is required for tweaking signer!');
}
if (signer.publicKey[0] === 3) {
privateKey = ecc.privateNegate(privateKey);
}
const tweakedPrivateKey = ecc.privateAdd(privateKey, tapTweakHash(toXOnly(signer.publicKey), opts.tweakHash));
if (!tweakedPrivateKey) {
throw new Error('Invalid tweaked private key!');
}
return ECPair.fromPrivateKey(Buffer.from(tweakedPrivateKey), {
network: opts.network,
});
}
interface IUTXO {
txid: string;
vout: number;
status: {
confirmed: boolean;
block_height: number;
block_hash: string;
block_time: number;
};
value: number;
}