{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to prevent and repair smart contract vulnerabilities in blockchain?","a":"Adhering to best practices: Developers should follow best practices for smart contract development, such as using secure programming languages, avoiding unsafe  functions and modules, and ensuring secure and reliable asset transfer between contracts."}]}],"pr":"9d5c9fa667b9d1bb559894ce8b0cd6f6e087fd8c699047600d8c472bf97804c7"}