{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the field of digital identity verification?","a":"Controllable identity information: Blockchain technology allows users to independently control their own identity information, allowing them to  choose whether to disclose it or not."}]}],"pr":"b3b13ba31fcf33c8f2cce7372122db208b9b4aaf6aca7ffa02dad428cbcd740e"}