{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you fix and prevent vulnerabilities in smart contracts during blockchain account interactions?","a":"input validation: strictly validate incoming parameters to ensure that the input is valid. Invalid input can lead to vulnerabilities and unexpected behavior in the smart contract."}]}],"pr":"3fc355bdc2bd95e35cb414ab85a5585dd88e8f14ea31bc7cb3f83872a25860dc"}