{"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":"Immutable identity information: Blockchain technology has the characteristic of being  tamper-proof. Once a user's identity information is stored on the blockchain, it cannot be tampered with or misused, ensuring the security and authenticity of the identity information."}]}],"pr":"14de57e69a4ebe90bb502d7ea3fae45bd5e1a5e16e991cbd8f64e123793125d2"}