{"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":"ea865ef4a31519e03097198aa3e9b33d792bb38a4f767ce1d45d67471602ac3c"}