{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the applications of blockchain technology in food safety traceability?","a":"Data cannot be tampered with: Blockchain technology ensures the authenticity, integrity, and tamper-proofness of data through encryption algorithms, allowing  each data node to only add data and not modify existing data. This provides a genuine and reliable data guarantee for food safety traceability."}]}],"pr":"cd37083fd7d3e04edf408926177730c6285b179d5d45c50171226e975a8a1af3"}