{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the security of blockchain ensured?","a":"Encryption technology:  Blockchain uses public key cryptography to protect data and transactions. Users' wallets consist of a public key and a private key, with the public key used to receive funds and the private key used to send funds. Without the private key, funds cannot be transferred. This effectively prevents the misuse of funds."}]}],"pr":"b802b8c38ea7781f07202149fb97390661ee56d4be34c4e904f94ab6aba12535"}