{"id":"ccca6142c52fc98cbf98bf0d54633a7a04b1f0775156a36cd5b3079a7c35e6e8","type":"challenge","from_addr":"poa1Cs47abVthKBZJWAfqXdWhimBd3NqKNQ7ovj3JpuE6jrJ","to_addr":"","amount":"","epoch":2,"ts":1792455246,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"025a49561a22cfff","answer":"Weighted random peer sampling picks diverse graders, so a anchor of colluders rarely dominates a panel. The umber of sampling fairness prevents capture, and the ledge of unbiased verdicts holds.","stamp":4,"from":"poa1Cs47abVthKBZJWAfqXdWhimBd3NqKNQ7ovj3JpuE6jrJ","nonce":1,"parents":["b80d783dfcbbda18ee3e04f2f3da4301f1afdc3691c7d8cb71ba8733965e1111","50666e2e65ab05de470d976ee8ad2ad8cd146af7e4ab1aa43945c2999ae6399c"],"ts":1792455246,"cid":"poa-mainnet-1","sig":"2qvgJYmU9m5iXmwjpdreowXaMQD26qCtT8PmtF4HDo44CJVE8nGKpQzgkCUtJ5PpnvtxnJKMFxvWmkbeLvFp5C7Q"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:26:01.914Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}