{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of blockchain technology in the management of Internet of Things devices?","a":"Decentralized Identity Authentication: Based on the IoT device identity authentication mechanism based on blockchain technology, decentralized identity  verification can be achieved, reducing the dependence on a single trusted third party and improving the security and stability of the entire system."}]}],"pr":"7ce00abcf51d799fdd5d75343692e50491ec09d77ae6fb87eaf51406085914d5"}