{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security issues involved in implementing smart contracts in blockchains?","a":"Cross-chain attack: The difference in security between different blockchains can trigger cross-chain attacks. Attackers exploit security vulnerabilities between  different blockchains to commit theft or fraud."}]}],"pr":"24ebcf9ed8061c0af2af688e83034abab193e0736fc48de4e0fc0ae7ddbbef71"}