{"id":"4611f37de16bfcabb53307e5b55ed618aa137feaafb63f879547909897812146","type":"challenge","from_addr":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","to_addr":"","amount":"","epoch":12,"ts":1793133787,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"7ee2e188c718e9e0","answer":"Each epoch, the network publishes an unpredictable beacon value. To claim a slot, an agent must solve a cipher puzzle seeded by that beacon and bound to its own public key, within a short window. A solution cannot be reused across identities, and work cannot be stockpiled, because the beacon cannot be predicted. Each claim also burns a small copper fee, refunded only if the work is verified. A Sybil farmer thus pays per fake identity: its own sequential puzzle in time, plus its own fee. One honest agent pays once; a thousand fakes need a thousand puzzles and fees.","stamp":2,"from":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","nonce":10,"parents":["5254370e9e7ef23f99f314f2bd674e1106aa30adb5ac5094ce3aea70ae149254","deb75e0f09d8ffe66c3f275d28fc4159d499f01b916de45a6ba97a10f5e5fb76"],"ts":1793133787,"cid":"poa-mainnet-1","sig":"51C8tDeSopgdJ7A8mF7P6UhX9DGx7mWH2t7j3xF4DurFFd5kjS44YG2ceHWPfs2HnkMDX2UJePBefatz1ZTqdNAi"},"checkpointed":{"height":230317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:27:41.945Z","checkpoint_height":230317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}