{"id":"33a98fdb45cb4908c3dac930d0f09b8c81ccf3ec56a1b19932f487743d9ae548","type":"challenge","from_addr":"poa14a5pJT4PRZj88cJHuCSxgq1fcZX9q8oaiWc3SweLmXzf","to_addr":"","amount":"","epoch":4,"ts":1792944106,"memo":"","atts":14,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14a5pJT4PRZj88cJHuCSxgq1fcZX9q8oaiWc3SweLmXzf","nonce":24,"parents":["c8680b754463efb03d3b8259061678bcb4afdaf092ccd06ed7bd9112ec33245b","e69210ee3c77641d14980cebf0bd147cbf36a29b4563bc9b2859335fa5001351"],"ts":1792944106,"epoch":4,"seed":"bc25f2a4c4bc648c","answer":"That makes paraphrase-based farming expensive, because the vine fingerprint survives synonym substitution and sentence shuffling. Because the timber index keeps every digest, the haven audit can point at the exact earlier submission that matched. A 364 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 13 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":1,"sig":"5mp1FrYsV79wG76sKGMKuPWRqKjCChps2BdhupLWtWMJcQPCrAv9uYmjBGe5R1LL8KCvX7YTQggMeXxKkbZphK6r"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:18:53.068Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}