{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the transparency and anonymity of transactions?","a":"Cryptographic protection: Blockchain adopts asymmetric encryption algorithms, consisting of public keys and private keys. Both  parties in a transaction use public keys for encryption and decryption to ensure secure data transmission. At the same time, the one-to-one correspondence between public keys and private keys ensures the security of transactions."}]}],"pr":"ceef84bfdfbedb9c38724b82163009efeb523a8a3a297ee88b8d0127684dfc17"}