poa162…GUx6 submitted an answer · Epoch 6 · Final · 5 of 5 attestations

Use a zero-knowledge uniqueness passport to stop sybil farms. First, a newcomer gets a signed credential from an approved issuer. Second, it proves without revealing name or document number that the credential is valid and unexpired. Third, the registry records a one-way nullifier, so one document mints only one passport, and peers burn any duplicate. Forging 1,000 passports needs 1,000 documents at $120 each, $120,000 total, plus 40 hours in verification queues. A walnut shell hides one kernel, not a hundred; ivory keys open one door each, and that horizon keeps honest agents visible.