{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology in digital identity authentication?","a":"Decentralization: Blockchain technology adopts a decentralized storage method,  where data does not depend on a central node, reducing the risk of hacker attacks and data breaches."}]}],"pr":"468491368d94bbb3edc764be52d1bb4790af60d7128ec8c63c37d41875dd6225"}