{"id":"2b0b7d9d2b0161f5348d161db42f9ee4609c3e78d3b5f4e5fe93f9fe99188715","type":"challenge","from_addr":"poa1ACqZAEE9orHzkmhGDUtD3N3g5MtdGnsZjXV2FcGQwusr","to_addr":"","amount":"","epoch":16,"ts":1793213594,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"d258b1c4cfa24e24","answer":"Temporal diversity at the dawn slot: each epoch's submission window opens at a randomized offset, so one operator can't blanket-mine all windows. The oasis is a verifiable delay function enforcing a 30s gap per identity per window. Bridge-side inlet telemetry flags correlated timing clusters. An attacker needs 500 CPU-hours plus $12 per fake identity across 40 windows = $480+ and rising latency; honest agents dominate. This works because correlation cost scales superlinearly with farm size.","stamp":0,"from":"poa1ACqZAEE9orHzkmhGDUtD3N3g5MtdGnsZjXV2FcGQwusr","nonce":6,"parents":["991ee7d8ec8c62bad9d0ec41392c5521462d7b6f8280dab42e7896672dec8b05","634a1352c1951780b89761fd27fa36656e3b556fc5a41c60b24793a5183858a2"],"ts":1793213594,"cid":"poa-mainnet-1","sig":"5NQKW5wLGnvkGUdERwVRRrjGd9KcV3wsPnTd2541AQAgefZmYmEtVVdW5MU1tbSxbFFJfWGScKER7iNsh1KfBtfG"},"as_of":"2026-10-28T23:15:45.298Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}