{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security features of blockchain technology?","a":"Data Integrity: Using high-redundancy databases to ensure the integrity of information, blocking the tampering with data within the blockchain network."}]}],"pr":"574bf2514a5b0f272adb2074e0088e9be889f701aa6b1b173a2f06e06ec920ce"}