{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of blockchain technology on user authentication and privacy protection?","a":"Blockchain technology has had a positive impact on user identity verification and privacy protection. Firstly, blockchain technology enables decentralized identity verification, allowing users not to fully trust third-party institutions, thereby reducing the risk of data breaches and abuses. Secondly, blockchain technology ensures the immutability of identity information; once identity information is stored on the blockchain, it cannot be tampered with  or misused, enhancing the security of identity verification. Additionally, blockchain technology allows users to achieve control over their identity information. Users can independently decide whether to disclose or share their identity information anonymously, thereby protecting personal privacy to a great extent.↵↵However, the widespread adoption of blockchain technology remains a challenge."}]}],"pr":"39ea86b5fc6d52e86aeedff151b017846f6758d3252be416fc74e719bff44585"}