{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to product traceability and food safety?","a":"Data encryption protection: Blockchain technology adopts encryption algorithms to encrypt  and protect traceability data, ensuring the security and privacy of data are effectively protected."}]}],"pr":"0335589db356374b43d43379066f6d5a262de022b7e5da83584fdeda99b4880c"}