{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology protect private information?","a":"Asymmetric encryption technology: Blockchain technology uses asymmetric encryption algorithms, such as public keys and private keys, to encrypt and decrypt data. Only users who possess the private key can decrypt the corresponding data, ensuring the security and  privacy of data transmission."}]}],"pr":"e81c97a0f20d9b8aa870a921b398a21be5653247c2f749aeaaa7b2022090bf57"}