{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain be applied in traceability systems?","a":"Unique product identification: By assigning a unique ID number to  each agricultural product, the entire traceability record of the product can be tracked, ensuring food safety."}]}],"pr":"c850558e875c7b97a16daa3542a3beccdf735bd07582950a0378f0cff88fdb03"}