{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology change digital identity verification and personal privacy protection?","a":"Blockchain technology has revolutionized traditional methods of digital identity verification and personal privacy protection by utilizing a decentralized storage approach. In blockchain technology, user information is stored on a distributed ledger, with each user possessing a public key and a private key. During the identity verification process, users sign with their private key, and verifiers use the user's public key to validate the signature, achieving identity authentication. This method enhances the security of identity verification as the data cannot be tampered with or deleted, ensuring the safety and privacy of user information. Furthermore,  blockchain-based digital identity authentication technology can also facilitate anonymous identity verification, with users only needing to provide their public key."}]}],"pr":"b81e695b2ebb91c236d4cc3ae72c88d8a4092bf3ef74a0b7212bed46b33a3c71"}