{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can identity fraud and fake transactions be identified and prevented in blockchain account interactions?","a":"Encryption technology: By using public keys and private keys to encrypt and decrypt data, the security of data transmission can be ensured.  Digital signatures can be used to verify the integrity and origin of the data, thereby preventing identity fraud."}]}]}