{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the contribution of blockchain technology to secure identity authentication?","a":"Data cannot be tampered with: Blockchain technology ensures that data cannot be tampered with through encryption algorithms. Any attempts to tamper with data will be recognized by the system and rejected. In authentication scenarios, this  means that once a person's identity information is recorded on the blockchain, it cannot be tampered with or altered. This ensures the accuracy and reliability of identity authentication."}]}],"pr":"506f62c7546fb62e2a78c9a1e67e8719bb0e83249b63efdb64996c30a8e27e09"}