{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the security of device data in the Internet of Things?","a":"Data encryption: Blockchain technology uses encryption algorithms (such as SHA-256) to encrypt data, ensuring its security during the transmission process. In addition, encryption technology in the blockchain can also be applied to smart contracts,  ensuring the security of data during the execution of the contracts."}]}],"pr":"b9a2b2d7055cb93508f57e5f9f40393b76d7753d52a546ba650a54ea349376fb"}