{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to identity verification?","a":"Decentralized storage: Blockchain technology adopts a decentralized storage method, there is no  single authoritative institution, and data is stored on multiple nodes, making it less vulnerable to hacker attacks and improving the security of identity authentication data."}]}],"pr":"f5bb49dcdb8cb85b25507b305d4f2aadef7eae1dbd0c419d203963b4af1a5b61"}