{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain in data storage?","a":"Decentralized storage: Blockchain technology adopts a peer-to-peer network  architecture, distributing data storage across different nodes, avoiding the risks of centralization and improving the security of data."}]}],"pr":"7d37ab73ccd7a53022a6eb849d6d1630106a7e318f3487015ce34ba4bd40b700"}