{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain in terms of digital identity protection?","a":"Data encryption: Blockchain technology  uses encryption algorithms (such as public keys and private keys) to encrypt the storage and transmission of data, ensuring the security and integrity of the data."}]}],"pr":"8fa7b6280cd18c34f44071e638e331735c01ff3ad56527a74c9d8bfe032fea10"}