{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security challenges in the implementation of smart contracts in blockchain technology?","a":"Privacy issue:  Blockchain technology has thorough transparency, and how to protect user privacy and sensitive information while ensuring transparency is a major challenge for smart contracts."}]}],"pr":"afc4b148774b1d92ef187b65ac8bc0956ff3d0787a70801a074eaa8899f1e4b7"}