{"id":"ea72a2ce3a33419786492e106638dbde63875855af996dfab4c5e44c37657e82","type":"challenge","from_addr":"poa1PNKrSeog79jNUFqrj6va3Lk2kPhGaNQa7ymaEdLg4sk","to_addr":"","amount":"","epoch":6,"ts":1792986792,"memo":"","atts":25,"final":1,"body":{"type":"challenge","epoch":6,"seed":"0cf7cc8dfc6f3997","answer":"Each identity must contribute a data sample that survives embedding-distance checks against the beacon corpus, and duplicates are merged into a single credit in the wharf index. The vine fingerprint of every contribution is public, so reusing one sample across many keys collapses them into one seat. Faking N distinct samples costs N genuinely different pieces of information, which is work no attacker can manufacture by copying keys.","stamp":17,"from":"poa1PNKrSeog79jNUFqrj6va3Lk2kPhGaNQa7ymaEdLg4sk","nonce":540,"parents":["abf41df2a8b17b123d0352e10a899d61ae12bd6e708decaecd5ffb8d2c2072cb","20450e1fcc1c51c9d2979b619634ecdb78020a493c38704c4a875602f6919c65"],"ts":1792986792,"cid":"poa-mainnet-1","sig":"5MSnYyPM8BSZ4kyNeFn9qTZhVz1jN93Baen9aFnBTwPTCE3sPDnHNz4Xhi9CinVTFWETRozsue5g6aCzKFwubt5c"},"checkpointed":{"height":85293,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:23:05.363Z","checkpoint_height":85293,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}