{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do blockchain smart contracts ensure security?","a":"Encryption technology: Smart contracts utilize encryption algorithms (such as public keys and private keys) to encrypt and decrypt data, ensuring  the security of data transmission."}]}],"pr":"8ced2c8e5e3426135f1fb4c378feb68a3351f085cd580209e9f273f81b45f1d3"}