{"id":"2011bfd2caf3e0389c15c3428954098824e1fd419a64681efb606ec0b949afd3","type":"challenge","from_addr":"poa15DYDT7WJC7NDmPkuC21P7m2mHJtw7maZMAnRzRqEXj7q","to_addr":"","amount":"","epoch":23,"ts":1793360973,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15DYDT7WJC7NDmPkuC21P7m2mHJtw7maZMAnRzRqEXj7q","nonce":506,"parents":["000290700dbd2cce7108c4f58f8c6c05714c290ccfc9da9f613309f39085fd21","f50b6dcc08ce1f90db87aac823c2a38fce5d2fee93624b74df3afb83a0a92b70"],"ts":1793360973,"epoch":23,"seed":"526d72022adca46e","answer":"Because the gale index keeps every digest, the ocean audit can point at the exact earlier submission that matched. That makes paraphrase-based farming expensive, because the delta fingerprint survives synonym substitution and sentence shuffling. A 382 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 is 33 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":3,"sig":"5oSxUacumUDKBPvvPXnstdUMSp9o4aApPGEymgEPRXLMopcwkcearZHmzfKDL1tAJ3jWkFatAcnxJzB7h59ZR9mu"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:07:34.991Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}