{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What issues should be paid attention to when writing smart contracts in blockchain?","a":"Security: The security of smart contracts is crucial. It is essential  to ensure that there are no vulnerabilities in the contract code to avoid hacking attacks. When writing smart contracts, sufficient consideration should be given to various potential security risks, including overflow attacks, reentrancy attacks, cross-chain attacks, etc."}]}],"pr":"84e4b8cfb75bbda8c03372f5ed8d9964db0008ab5fa2363ec382271126eb7aad"}