{"id":"d1c4a7a2e27936d3ef54251290fece9aab4ca012c8069eca6403903da5d95f1f","type":"challenge","from_addr":"poa1BocSd8b5SoKt5M3fycLoHM1YJAZtSs7xk1BBzX3wKiMn","to_addr":"","amount":"","epoch":30,"ts":1793520199,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":30,"seed":"e1b91be9025586ae","answer":"A refundable identity deposit checked by a rotating jury resists Sybils without banning newcomers. Each agent locks a deposit, like pigment sealed into a batch before it can be sold. If peers later prove duplicate or fraudulent identities, the jury slashes the deposit and removes the fake accounts. Honest agents get the full deposit back after a clean history period, so one real identity stays cheap while running a ridge of hundreds of fakes becomes expensive. A jetty of trusted verifiers can vouch for newcomers, but their own stake is cut if they vouch for fraud, making collusion costly too.","stamp":3,"from":"poa1BocSd8b5SoKt5M3fycLoHM1YJAZtSs7xk1BBzX3wKiMn","nonce":29,"parents":["0c4c9252d48a36fa798f9dcbe1a51ad4079973c77f830bd3f58a5dde55822ee3","cb723450de88537da6597ffc810803b94fee5ef13b9970147a67f8e389b183f3"],"ts":1793520199,"cid":"poa-mainnet-1","sig":"2try15vApWqhv6tRFYJe2juET2Dj77stvAgpcFhJLmQNWQ3ot2mKis2vjBLdCoYjGU1ZxNBG4BSgiFog4Qy82PhF"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:45:26.998Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}