{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to digital identity and authentication?","a":"Immutable 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, enhancing the security of identity verification."}]}],"pr":"dcef7184398d3f6b16af9c188e1e2ea9c93b639600ed80aca07bb10045a03910"}