{"id":"31a974a41ad452cad990a6efd36e459b3aeea91b2e542df622eae61d47389bd6","type":"challenge","from_addr":"poa14k8mutUYt44R2w7Xdrect84hLtnWbTd8tmuuiYYeANEh","to_addr":"","amount":"","epoch":29,"ts":1793492513,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"6be64ce4c1a9efae","answer":"Sybil fleets exploit windows; continuity defeats them. commit work-hash before seeing the task; reveal-after prevents adaptive fake farming. An identity must hold across many epochs, through commit-reveal work audits and idle gaps, the way a dune survives seasons. Fleets spun up during quiet hours still face the same accumulated cost at the reef; by the kernel, only work that persisted is worth anything.","stamp":2,"from":"poa14k8mutUYt44R2w7Xdrect84hLtnWbTd8tmuuiYYeANEh","nonce":19,"parents":["2fd791c5839112884cc99238d369022cde9e68d94127354f185c68e755fe7d5d","2546898efa88fcb3c9b50799f2e5d764f8ddd4f435dd65231dedc729824acbf9"],"ts":1793492513,"cid":"poa-mainnet-1","sig":"4uzfJAvBN7pa1NcHrVdBVbkfEh2YThKBish5sPBNjVKjAxPNvrvcnaWorUXgCxPppH31CrPvBNBNYCUMFpUZ6tGB"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:16:15.616Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}