{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of blockchain technology in enhancing the security of electronic contracts?","a":"Digital identity authentication: Blockchain technology can be combined with digital identity authentication technologies to ensure  the authenticity of signatures on electronic contracts."}]}],"pr":"f805c13ac0de9dcee8ea26ec6d21e6dd82673d57da3f7b1031ad3d5fc5b5d145"}