{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the security in the IoT sector?","a":"Decentralization: Blockchain technology adopts a distributed  node consensus mechanism, eliminating the security risks caused by centralized management and reducing the success rate of hacker attacks."}]}],"pr":"2938196b6a20543514c9993bd8fa876a66f177ae06472774fbc1d4165b4316c8"}