{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the security and trustworthiness of devices in the Internet of Things (IoT) field?","a":"Provide credible authentication and data integrity protection: Blockchain technology achieves device authentication and secure data transmission through decentralized characteristics and encryption algorithms, ensuring the  trustworthiness of the IoT system."}]}],"pr":"3e595eef9fa61111c13af39924aca98d00bb16191d838a9783dd4ed1d9550623"}