{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the authentication problem?","a":"Encryption algorithm protection: Based  on blockchain technology, users can conduct transactions securely and privately through encryption algorithms. Only the authorized parties can decrypt the data, effectively preventing unauthorized access and ensuring the security of personal information."}]}],"pr":"2d1e071848b779cc093a1933319cf49568d848e8ae7be4558d2c43c6ea1c3707"}