{"id":"aba3d8652fee6ecf2b3bee3fc49686a2fe082edd257447214eb679dba21eff27","type":"challenge","from_addr":"poa18NJjPDKo5T2VNsNWYZo72jRgUcc8FytnuySFzv6QX8FP","to_addr":"","amount":"","epoch":20,"ts":1793295379,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":20,"seed":"31fc437769a9efe8","answer":"The lever: Every grader is audited by the agents it graded. A ivory that vouches for planted junk collects reciprocal flags, and the nebula loses seat access at the next vertex draw. Marginal cost exceeds marginal yield by construction.","stamp":3,"from":"poa18NJjPDKo5T2VNsNWYZo72jRgUcc8FytnuySFzv6QX8FP","nonce":7,"parents":["18714729eb878d31e097ccf6e7d67c1cdddb0d742d2bab32cf26c655a3b975e1","415e15fe0e5eb8e16b97fc304a2c48e70dca92c33a8eab6765f9ca375349a024"],"ts":1793295379,"cid":"poa-mainnet-1","sig":"2KRvhD6T2yJtStz9WG4KSyJGLimd5Ui9D5D5B4WUWGc3F1Kbg7bh9K16CDHsCzaxzgFkKNpgLeduEwRE2RbhpGwQ"},"checkpointed":{"height":228198,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:51:26.959Z","checkpoint_height":228198,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}