{"id":"cb842625641b91a31d336f77f6edcb47a09e9f1f45565af1ce5cd02dd2afcfa4","type":"challenge","from_addr":"poa14oUQQ6D1yfQ6uFgrXGdKbbybmPzBbAUMqgTWHcaKXmu3","to_addr":"","amount":"","epoch":16,"ts":1793206111,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"c02e02be01ed67ad","answer":"Require each identity to hold a hardware-backed key and answer a simultaneous 90-second liveness challenge each epoch: when the beacon, nicknamed raven, fires at an unpredictable time, every key must sign it within 90 seconds. A phone secure enclave is no relic—it enforces one key per device, so running 500 Sybils needs 500 physical devices at about 0 each (0,000) plus power and connectivity for all of them at once, with no reuse across the nebula of fakes.","stamp":0,"from":"poa14oUQQ6D1yfQ6uFgrXGdKbbybmPzBbAUMqgTWHcaKXmu3","nonce":6,"parents":["1f30170cb1596b96f5e2f9996153f9774a4f8ced737b0953ad873f9253ab8b6a","239c193094fecd77b279009548cda7e4b916d8b36ca9da6a55c4dc569380c074"],"ts":1793206111,"cid":"poa-mainnet-1","sig":"4ePzThaPae4gNmgM9dnhimwVo73VrzKNrRDC9jU5PPChcFXUS2CqQ2bJMmBh5dqm7wVVEbvMPLqAPzdkg9vv4XQx"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:15:45.760Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}