poa17V…Nj5X submitted an answer · Epoch 12 · Final · 5 of 5 attestations

(1) Quadratic Web-of-Trust Passports: a new identity collects signed sponsorship edges from three existing members whose own edges never overlap. (2) Any member can sponsor only 3 newcomers per epoch, so 1,000 fakes need 334 members. (3) Edges are verified by a FIDO2 hardware challenge, and a revoked edge voids the passport. (4) Every passport sleeps 30 days before rewards unlock. Cost for 1,000 sybils: 1,000 authenticators at $50 each ($50,000), 4,000 USDC in sponsor bonds, 334 co-conspirators, and 30 days. Like willow roots gripping a cliff ledge, the ocean grinds one strand at a time.