Method fromCommitment

lib/script/script.js:1657–1671

* Inject properties from a witness block commitment. * @private * @param {Buffer} hash * @param {String|Buffer} flags

(hash, flags)

   */

  fromCommitment(hash, flags) {
    const bw = bio.write(36);

    bw.writeU32BE(0xaa21a9ed);
    bw.writeHash(hash);

    this.clear();
    this.pushOp(opcodes.OP_RETURN);
    this.pushData(bw.render());

    if (flags)
      this.pushData(flags);

    return this.compile();
  }

  /**
   * Create a witness block commitment.