{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to identity verification?","a":"Distributed ledger technology: Each user has an independent account on the  blockchain, and account information is recorded by the distributed ledger, ensuring the security and reliability of identity information."}]}],"pr":"432392d17517a05a312ce46fc5a791a721aa378e0a172df66e45a257daa71a64"}