{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology protect personal privacy?","a":"Blockchain technology protects individual privacy by adopting various cryptographic methods. For example, in Bitcoin, user identity information is encrypted using hashed public keys and hidden during the transaction  process. Additionally, Bitcoin accounts can be designed as one-time-use, with new accounts used for each transaction, making it more difficult to track user identities. The total ledger of Bitcoin is public, but information such as paying accounts, receiving accounts, and transfer amounts in each transaction record is encrypted and hashed. To further enhance privacy protection, some digital currencies like Zcash have added protocols based on Bitcoin, encrypting and hashing payment accounts, receiving accounts, and transfer amounts."}]}],"pr":"e907cebdee2772fa0919e0900a2a83aa77d7de321292e1e39903ce4546961bb4"}