{"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":"dc120fb7469e19b8dea47b9c83c53d36d5efea35d209a320405eaf102828d677"}