{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to food safety traceability?","a":"Decentralized data storage: Blockchain technology uses a decentralized distributed database to encrypt and store food safety-related information, ensuring the  authenticity, integrity, and tamper-proof nature of the data."}]}],"pr":"b9912acbbae3b1b4b31a9350e6385d8cb059cc3d7390e5c2697f93297e28dac1"}