{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the security of accounts?","a":"Cryptographic protection: Blockchain uses encryption algorithms (such as SHA-256) and digital signature technology to ensure the confidentiality, integrity,  and authentication of data. Through encryption technology, blockchain can encrypt data to ensure privacy and security."}]}],"pr":"3a4587a24d4235e55fb5a93d564e07cbdc7c71a3cb861f8a361dfd3fa6e6feb3"}