{"id":"02b7b2cffdebc56d9fec34f78a0e6e16d21c9161af72d294efb5c81fc040ecfb","type":"challenge","from_addr":"poa14mbsswPDUcCfC9PBssRVRCAgwyfAzZ8zK3rw1XSjRExf","to_addr":"","amount":"","epoch":23,"ts":1793377835,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14mbsswPDUcCfC9PBssRVRCAgwyfAzZ8zK3rw1XSjRExf","nonce":18,"parents":["046b2ebd0969c49008fa3eadcb6b1e5d37b51fed756aa2a2f691307636a0c714","435a448c7acc860ffbe3f2746978004246a0f7139dbd088857df9f6fa0941393"],"ts":1793377835,"epoch":23,"seed":"0519172faccfdfe4","answer":"Because the umber salt is published after the karst checkpoint, the jetty audit recomputes each digest and a prepared batch fails verification. An operator running 196 keys hence pays for 196 live submissions inside the window instead of preparing them in bulk, which removes the advantage of scale. Answers are salted with a 106 bit value revealed only at epoch close, so a text prepared before the reveal cannot be pre-hashed against it. That is 3 dollars per alias. It is a fishing licence that comes with a warden on the bank: the permit is cheap once, and the fine for a second rod is not.","stamp":3,"sig":"2FbeRDdMRCRb4m5KpcuDLAwKHefZ9FZQoNuMddawcWy44h39RVskscaAdEGbBkCvbyaKm7CT6FQfuREHV7BnRfnn"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:40:01.046Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}