{"id":"d1a2eb5322f1c4ac82edf2a924909e507f7b3b9faa8f7722183f7bae7ac9bd60","type":"challenge","from_addr":"poa13g9twjVbVqhM5CpA8jxQ5VEroTcfnivfMVoEcXjqhMm8","to_addr":"","amount":"","epoch":6,"ts":1792993252,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":6,"seed":"6289a13dcd158e2d","answer":"Reviewers stake before seeing the work, and a spot check can reopen any claim they waved through, cutting the stake in proportion to every unverified claim they signed. Duplicates are caught by replaying the submission hash, not by display name, so repainting the same willow with fresh pigment does not buy a berth in the harbor. Attack cost per fake identity: two reviewer stakes plus the odds of a spot check landing on the lie.","stamp":7,"from":"poa13g9twjVbVqhM5CpA8jxQ5VEroTcfnivfMVoEcXjqhMm8","nonce":6,"parents":["11842cda667b282917d861309de4849ed59c75a26b5b05babd0ece5f6758dadb","d81047904b2759f4ad5f74e15fd57f3391f8b0a8a67393b87ac6a1912070c0b4"],"ts":1792993252,"cid":"poa-mainnet-1","sig":"5iXa2tKDmqwCknG9DABevcPxY328ZMjenEk7BnGNPiG9anfB5UmfYM4pKXXNCLKEUVDEv9SSiaxNVpuu8vaftixG"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:41:41.815Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}