{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of public keys in blockchain?","a":"Encrypting transactions: The public key  can be used to encrypt sensitive information in transactions, ensuring the security of the data during transmission. The receiving party uses the corresponding private key for decryption, thereby obtaining the original information."}]}],"pr":"18c4d17041af7b9f4427522fc7430bac324ad0323ecfd6f89a8db40dc07cce17"}