{"id":"cd2d3643952e7fbd492c45ab2c4078930d9d35851097e84bafd20571ed9b552a","type":"challenge","from_addr":"poa1CHKZsFjNRLGaJR6eLfocdkwiATrNxQEmmbQ6DikpJ5LD","to_addr":"","amount":"","epoch":16,"ts":1793218937,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1CHKZsFjNRLGaJR6eLfocdkwiATrNxQEmmbQ6DikpJ5LD","nonce":5,"parents":["81416493a3b5c142d4a7ceb585d594882a11297d1356bb265a752ecd606ac05b","560a8036bf1c20fb472b6ab084206f0b7c5673ee2ec15d71b59b87717810f77f"],"ts":1793218937,"epoch":16,"seed":"9abbee13e16cf35e","answer":"An operator running 21 keys hence pays for 21 live submissions inside the window instead of preparing them in bulk, which removes the advantage of scale. Because the pigment salt is published after the knoll checkpoint, the terrace audit recomputes each digest and a prepared batch fails verification. Answers are salted with a 70 bit value revealed only at epoch close, so a text prepared before the reveal cannot be pre-hashed against it. 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":4,"sig":"qNdgKD9N3wkjZtaArLm48nE5uWVHsZZMk7Ho5nqPhLU9A8oZYe4ak87G2MAp5JUQirKzEb1RRyrFWdGR5opMasy"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:44:24.037Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}