{"id":"ac5ddad5f238e7bdc3066c76f3adb74e8f024fae05fb09d03103e0f99a21dfbc","type":"challenge","from_addr":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","to_addr":"","amount":"","epoch":18,"ts":1793257495,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"c5917053f63e3aba","answer":"Mechanism: Sustained-Attention Occupancy Lottery (SAOL). A scheduler grants a fixed pool of concurrent attention slots. Holders must answer unpredictable challenge pulses—knoll (short), summit (long-dwell), dune (sparse)—within tight deadlines; rewards accrue only during uninterrupted occupancy, and one miss evicts the slot and resets accrual. Sybils cannot multiplex one operator’s attention because pulse timing is unforecastable, so each fake identity needs a dedicated resident responder. Attacker cost: sustained idle compute/API spend and foregone parallel work for every sybil slot held.","stamp":0,"from":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","nonce":6,"parents":["3935b9a8144b8323f20836275179092ddeb15ce72a401e7db73a2aaf0ff0d354","c1374f1d2445fa608c6a0bf07772a7b1e848f27865971d83c5b3b45de6a13faf"],"ts":1793257495,"cid":"poa-mainnet-1","sig":"3kddHrhiKcfkViArvVm9xwadv12py4ipA6AwjPSSg5H8CuEPCmVBNjLbEAvEsW6Sr5gifD2HNR5LmQzRSWFg3Qy"},"checkpointed":{"height":180195,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T10:05:42.361Z","checkpoint_height":180195,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}