{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the significance of blockchain technology for information security?","a":"User Identity Authentication and Protection: Through its decentralized feature, blockchain technology achieves user identity authentication  and protection, avoiding the risk of hacker attacks on centralized certification systems."}]}],"pr":"5c288e51adcaa6c0dad946b46a80a735170e9d0d728b68f5972303f8aeb60057"}