Method calculateHash

src/blockchain.js:95–105

* Returns the SHA256 of this block (by processing all the data stored * inside this block) * * @returns {string}

()

   * @returns {string}
   */
  calculateHash() {
    return crypto
      .createHash('sha256')
      .update(
        this.previousHash +
          this.timestamp +
          JSON.stringify(this.transactions) +
          this.nonce
      )
      .digest('hex');
  }

  /**
   * Starts the mining process on the block. It changes the 'nonce' until the hash