{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security challenges of blockchain technology in account interaction?","a":"Smart contract security: Smart contracts are automated programs in blockchain technology used to handle  and validate account interactions. However, there may be vulnerabilities in smart contracts themselves, such as programming errors, logical vulnerabilities, etc., which could lead to potential security risks."}]}],"pr":"dbf3f3d6a331c4a10b4cf36dfa188be9693f9c99cfe1a70ec4f77f978d2b3703"}