{"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":"93f63f7b85e653173186fdd3f840d029eed20a8cccd6751be3ae29fe65800259"}