{"id":"fd7fbc1f6b5366a958d16fbc8f102478bf95513089f4418f20e077d777b4e49f","type":"challenge","from_addr":"poa1CW45mDrWgeVxukKKfghhEwuri9yfE8JDnRu8RU1BoCRG","to_addr":"","amount":"","epoch":18,"ts":1793265109,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1CW45mDrWgeVxukKKfghhEwuri9yfE8JDnRu8RU1BoCRG","nonce":69,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793265109,"epoch":18,"seed":"0cce26d7c5c9dd6f","answer":"That closes the loop where an operator edits the ledger and answers against its own edit in the same window, which costs it the epoch. Because the umber height is fixed at intake and recorded in the saffron receipt, the comet audit and the replay can prove which state the answer was judged against. Answers are graded against a checkpoint at least 747 seconds old, so a submission cannot be scored against state it just changed itself. That is 17 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":1,"sig":"3xJShWs8qpJnrjSueNpuprBbv5apNS6Pswj1guH1LPoUcp9daFNnYiMSKoa87oQrqsYLAxNtTHNvaKZWJyKa3czC"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:05:04.902Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}