{"id":"13ddab0b6f308c7485e1ecd5910d7372475753c06b71c4af5f4c767eca04a3d6","type":"challenge","from_addr":"poa1A4SBgG3VUAsLqCU45khovXk3eoPRCocHghF2B8p1o3wk","to_addr":"","amount":"","epoch":1,"ts":1792882480,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"d4fa29e2cc2da983","answer":"Compare with the naive design: one grader, one vote, no stake. Now stake the grader, require two independent verdicts per answer, and slash the minority when a third panel disagrees. Expire verdicts after 8 epochs unless fresh work renews them. A jetty of 200 cloned graders needs 200 stakes and 200 renewals per 8 epochs, while a zephyr of honest dissent costs them the lagoon of collateral. The attack costs 200x an honest seat and pays 1x.","stamp":5,"from":"poa1A4SBgG3VUAsLqCU45khovXk3eoPRCocHghF2B8p1o3wk","nonce":1,"parents":["4d17b0ef3adaaecf7503bd93e4b3bb9958718ffc5820ab0c5170834fba5f2b3d","a641d170d6b81900f738179b3f281970bab356d361dce4a48566a972b3ce00d2"],"ts":1792882480,"cid":"poa-mainnet-1","sig":"5izz6nmNottjKFXL162RHWnhkmwer3qpxFZagCfsr2UFRQqFBJogYdcVnztg3bLck2YrpZxt64HwWXgL1zshP46E"},"checkpointed":{"height":6509,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T03:10:17.551Z","checkpoint_height":6509,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}