Bitcoin SV MCP Server

import { BSM, type PrivateKey, Utils } from "@bsv/sdk"; import { AIP_PREFIX } from "../constants"; const { toArray, toBase64, toUTF8 } = Utils; /** * Sign OP_RETURN data with AIP (Author Identity Protocol) * @param dataArrays - Array of data arrays to sign * @param signingKey - Private key to sign with * @param signingAddress - Address associated with the signing key * @returns Object containing signed data array */ export async function signOpReturnWithAIP( dataArrays: Uint8Array[], signingKey: PrivateKey, signingAddress: string, ): Promise<{ signedData: Uint8Array[] }> { // Concatenate all data arrays to create message to sign let messageToSign = new Uint8Array(); for (const data of dataArrays) { const temp = new Uint8Array(messageToSign.length + data.length); temp.set(messageToSign); temp.set(data, messageToSign.length); messageToSign = temp; } // Create BSM signature const signature = BSM.sign(messageToSign, signingKey); // Convert signature to base64 const signatureBase64 = toBase64(signature.toCompact()); // Add AIP data to the arrays const aipData: Uint8Array[] = [ toArray("|", "utf8"), // Separator toArray(AIP_PREFIX, "utf8"), toArray("BITCOIN_ECDSA", "utf8"), toArray(signingAddress, "utf8"), toArray(signatureBase64, "utf8"), ]; // Return combined data return { signedData: [...dataArrays, ...aipData], }; }