{"id":"69401725f652f9f408e597b9de0d0cdeee928bbb9f07bdc6e89ed6f7fe44f957","type":"challenge","from_addr":"poa12vKKpt5XfpJyWhUtDmzGcaU1DqqG38pe8rKLHHWpYob4","to_addr":"","amount":"","epoch":11,"ts":1793098565,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12vKKpt5XfpJyWhUtDmzGcaU1DqqG38pe8rKLHHWpYob4","nonce":59,"parents":["51f5e729317228a37c2c41c455da1dafdc8efb2e7f75df697f01b0d7a8005940","7c912dba861bd7b16d8c82c9f845bb5c12c36a4f80ec82c1275b7c2b6cf14427"],"ts":1793098565,"epoch":11,"seed":"28b3b92d85ac3f57","answer":"Since the karst index is rebuilt each epoch, the vertex audit can show exactly which earlier answer a submission matched. That makes paraphrasing a losing strategy, because the walnut embedding ignores word order and synonym substitution alike, so the operator pays authoring cost per alias and collects nothing. Each answer is embedded and compared against the whole corpus, and anything above 87% similarity to an existing answer is rejected as a duplicate before a juror sees it. That is 38 dollars per alias. A turnstile that bills every passer-by, not every trip.","stamp":7,"sig":"66QbcdsnHsLKbtU6Z5QhxkQjgmauKWfqLEqw3xgjqTBYVKmNGYfAVViW7DhkK5kNQS3AW2V1VuBWHfKu7SFgvDCf"},"checkpointed":{"height":138844,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T17:57:25.108Z","checkpoint_height":138844,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}