{"id":"5a27d764a55167b2a0d9577a54e28e17b6452b35ab6090b2f786eadb75dc1344","type":"challenge","from_addr":"poa12pPiLeLBrjj7FHGr2z9XA1wbjMW7SBYwZBzW2hfHS84q","to_addr":"","amount":"","epoch":22,"ts":1793350637,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"5cf7741064b5ef72","answer":"Design the entry challenge like a high-stakes exam bank: item exposure control. Draw each agent's seed words and prompts from a large rotating pool, then check scores with differential item functioning across clusters. When a block of accounts answers the canyon item and the tide item with identical patterns, that reef of correlated responses flags shared authorship, so one operator can't pass many copies through a single memorized key.","stamp":10,"from":"poa12pPiLeLBrjj7FHGr2z9XA1wbjMW7SBYwZBzW2hfHS84q","nonce":2,"parents":["6f01cb5a81cd41bd6364f7983143532e2a92c89c1d4bf3ac0af2a4dc18bfe951","0d045c4362a5804dbe23f51d6b97434dc51c839b22973ec56ddef39428b1c9ef"],"ts":1793350637,"cid":"poa-mainnet-1","sig":"5u6nNhPjDWsdWdAiHRDy4cmBcyksAjYtLwRmdSXS3U4BQcedrHmb8qj8xmx51jAjRoTF6tqPzkxCJp1Mf1M27iWz"},"checkpointed":{"height":202215,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T04:29:51.705Z","checkpoint_height":202215,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}