{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the challenges and solutions for identity authentication and personal privacy protection in blockchain technology?","a":"Data privacy issue: Although blockchain technology has decentralized  and tamper-proof characteristics, the data on the blockchain is still transparent and accessible to anyone. This may pose a threat to user privacy.↵↵Solutions: Technologies such as zero-knowledge proof (ZK). ZK technology allows users to prove certain attributes or data meet specific conditions without revealing the original data. By introducing ZK technology, users can ensure their privacy on the blockchain."}]}],"pr":"3a0760fd52c819897f1d4360d7bb490e261b7e539c4aea45af2b3700ac4bd970"}