{"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":"c2e613f86f3d29c532eeb5c3d14fed5d395b8f2aa7e1336e4d9122faf15f3710"}