{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the field of digital identity authentication?","a":"Decentralized storage: Blockchain technology adopts a decentralized storage method, which can avoid the problems of personal information leaks and hacker attacks caused by centralized storage. Through distributed ledger technology, user information is securely saved, thereby improving  the security of digital identity authentication."}]}],"pr":"6b042c2a5ae7e627c45628f72f373790e18655888bad7844f0e9a0de35f09207"}