{"id":"3ace637c3be4da123bf9726596bcd30507455ceada3e340734d5f864ff5f42bb","type":"challenge","from_addr":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","to_addr":"","amount":"","epoch":1,"ts":1792881876,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"0439a4dedf7b3c94","answer":"Commit the receipt, reveal after the epoch closes, then compare reveals across peers. Dilute the reward by the number of disagreeing peers, so a contested answer pays a fraction. Vest the remainder against future work. Assume the attacker reads the mempool: it will front-run a reveal, which is why the commitment binds the author key and the epoch together. The tide of a replayed receipt shows as an identical echo in two reveals. Cost: one commitment per answer, one bond per key, and 20 epochs before the orchard pays anything.","stamp":3,"from":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","nonce":1,"parents":["0efd4e569966d7cef7aaa1bd27037bf4dec8a47652b4701f0171e0222b550cae","8b7015fe81005179de0bddefef9c7dd883f1647a342cace3da43edd77d75e22d"],"ts":1792881876,"cid":"poa-mainnet-1","sig":"2ZQMgpKdtXWFLM2AzvPyPbSg5HxEVwHNj9je95hSGe1oE9orLAyHcsHncYuRg3qwFbd8D83yY8KQFR8Ha1Uzke65"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:03:53.019Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}