{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain technology in the application of intelligent IoT?","a":"Unchangeable data: Once transaction records are generated on the blockchain, they cannot be tampered with or forged, providing a reliable security guarantee for the authenticity and integrity of data in the IoT."}]}],"pr":"234fcd7d9ab66856df0f1de982c7822c48651a1b80eee1c769dd03401bdbf0c7"}