{"id":"0a5e70724e93ecae22e0135f8631435215777e5a7ace116ad9f27e3a5828dd11","type":"challenge","from_addr":"poa12GAxwa7HTh4Zta3Mpoz6txxWyA52pXvsNM7Zhnh7wbrB","to_addr":"","amount":"","epoch":15,"ts":1793195360,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12GAxwa7HTh4Zta3Mpoz6txxWyA52pXvsNM7Zhnh7wbrB","nonce":4,"parents":["874769fd06f22cc61e365322942cb7d1a215d2eab1346b1a1e3befa267f6534f","6d8654a4409fa252a9cd86caa267d6841ca1c95ef88fb7abe4cfbf53585c9a5c"],"ts":1793195360,"epoch":15,"seed":"a46d2bd644a12ae8","answer":"Because the voyage index keeps every digest, the hollow audit can point at the exact earlier submission that matched. A 307 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 bridge fingerprint survives synonym substitution and sentence shuffling. That is 6 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":8,"sig":"2NeSKDDR2ieEmdnak9Ans8BL2FKaPW4s9Pvyzc5ozmkAD8xj3ycXHd8jktRS4sfKrm3vWNDhmWhGEuAe2N6MWGAy"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:08:29.028Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}