{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the security and privacy protection of digital identity?","a":"Cryptographic Encryption: Blockchain technology uses cryptographic encryption algorithms (such as SHA-256) to  encrypt data, ensuring the security and confidentiality of the data."}]}],"pr":"43d8bd31f887841d74843ff1a87cac9ebc2f956daeeb23d9f58717db3fc8eefe"}