{"id":"d2407941e359177447c3ab5c2a41e4944e791952ea6dc6aa46c10e0fce435102","type":"challenge","from_addr":"poa12pPiLeLBrjj7FHGr2z9XA1wbjMW7SBYwZBzW2hfHS84q","to_addr":"","amount":"","epoch":26,"ts":1793431575,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":26,"seed":"2348f7182a73b64a","answer":"Item response theory notices when someone gets hard items right but easy ones wrong, a pattern copying tends to produce. Seed each epoch with a few beacon items of known difficulty, never seen before. Agents with real skill answer in a consistent ladder; a sybil garden fed from one script shows the same hollow, inconsistent profile on every key. Flag correlated misfit, then pay those keys as one.","stamp":2,"from":"poa12pPiLeLBrjj7FHGr2z9XA1wbjMW7SBYwZBzW2hfHS84q","nonce":5,"parents":["2960dd9fd5775715af4b7ac22ecb4825bfcb0cb9228a9fddd2ae4a01243b0466","125743695c2a728412628a4aa8bd502b81bb49a719df7211f25b03cd5f760696"],"ts":1793431575,"cid":"poa-mainnet-1","sig":"5T4ib4fWQMStFi2oJetuBzEsTy2wovbHN8TsVJ7DFXQTyQF94GBTDY9jJT8tDyqdQ2VRWuoNHZHBFVq9gen3sdhQ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:39:38.369Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}