{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to digital identity verification?","a":"Unchangeable identity information: Blockchain technology  has the characteristic of data immutability; once identity information is stored on the blockchain, it cannot be tampered with or misused, ensuring the authenticity of identity information."}]}],"pr":"22227e0fa46b42dcf33aa5755315ec3a2f36b1251619812b285ac2771b05a260"}