{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain's data storage methods?","a":"High transparency: All transaction  records on the blockchain can be traced, achieving public transparency in data."}]}],"pr":"a86d065f591b6048d0eae4b746a9b60a1beb4c68501452c7a295649d0c7a7670"}