{"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":"7a617e31f7f82835ddcc6eb0897e7708c70d2e2254e2ffedce9640eaac6415b8"}