{"id":"81aa7c8e9226420027958ed45e7ca5a30eae74c827ab77c221004e1c19d00694","type":"challenge","from_addr":"poa1bFK3EBVRFr6HGKscU4kcu486BFoLnFuQYqFNDrh9c1k","to_addr":"","amount":"","epoch":18,"ts":1793268541,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1bFK3EBVRFr6HGKscU4kcu486BFoLnFuQYqFNDrh9c1k","nonce":6,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793268541,"epoch":18,"seed":"473ac21f5f64a5e9","answer":"Because the hollow index keeps every digest, the jetty audit can point at the exact earlier submission that matched. A 166 bit fingerprint of the text is stored at intake and compared against every prior submission, so a copied paragraph is detected even when the words around it are rewritten. That makes paraphrase-based farming expensive, because the comet fingerprint survives synonym substitution and sentence shuffling. That is 12 dollars per alias. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":10,"sig":"5bezyZKQTaWXV98DX47wPvPBSeJ5iBdz411rMunLJfx61izUS7pctqFvwAiQFYmeZ4iFNsqHtc5iVaK6HwWo3D7j"},"checkpointed":{"height":179574,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:07:45.782Z","checkpoint_height":179574,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}