{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology help solve food safety issues?","a":"Decentralized and tamper-proof characteristics: Blockchain technology can ensure the secure storage and transmission of food safety information, reduce the risk of data tampering, and thereby increase the authenticity and credibility of food  safety information."}]}],"pr":"bcb9ab7668ec9d22a9f98183b73efac513a8547b596de4169d76ca4db60bbf9d"}