In blockchain privacy, the most intuitive aspect should refer to transactions and transfers, at least for us retail investors. Over the past few days, I've been continuously sharing information related to Miden, and through a shift in perspective, I've realized that "identity" is even more important for privacy. Because transactions only involve amounts and whether the addresses are correct, while identity involves how the real world connects to the blockchain without destroying everything. This is also why Miden keeps emphasizing starting with "privacy-protecting identity" to approach Practical Privacy, which makes a lot of sense. Many people have a dislike for KYC because they feel that the "centralization, scrutiny, and submission of information" exposes their personal data in an unpleasant way. However, from an engineering perspective, the bigger issue is: identity verification = original data circulating permanently. To be compliant, you must submit your passport, ID, selfies, and address. This information will be copied, stored, and synchronized across various systems, ultimately becoming countless risk nodes that you cannot control. This is not our problem; it is the identity system's assumption from the beginning that you must disclose everything. What ZK identity truly changes is the "verification logic." This time, Miden and Billions Network introduced the Privado ZK identity stack, which focuses on breaking the entire process into three key technical points: 1. One-time verification - identity is only used locally to generate proof and will not exist in the system long-term. 2. ZK proof as the sole credential - on-chain and applications only see the proof, not any original personal data. 3. Selective disclosure - refers to verifying whether you meet a certain condition, not revealing who your identity is. These three points together make identity for the first time a programmable input, which aligns well with Miden's model. There is actually a crucial design consistency hidden here! Miden's architecture emphasizes: 1. Client-side proving 2. The chain only verifies results and does not possess data. 3. Execution and data ownership should remain as much as possible on the user side. Transactions address efficiency, while identity deals with a sense of privacy boundaries. @0xMiden @0xPolygon @KaitoAI #PracticalPrivacy #Privacy #KaitoYap #Yap