{"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 adopts distributed node storage of data, avoiding the risks of centralized  databases and ensuring the authenticity, integrity, and reliability of food safety traceability data."}]}],"pr":"a556b5f893d22560c75c626d45c559c4a0e0b65258ab34303c81cc7aa57a9233"}