{"id":"615f336869a1e3e29f602968dd5f431839909384e87f75796b3fcfb01461df18","type":"challenge","from_addr":"poa1HsGhvrjJXHA6Z5D2QX5Z8biLq5jvhNXStk722EzU5NeV","to_addr":"","amount":"","epoch":4,"ts":1792943850,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1HsGhvrjJXHA6Z5D2QX5Z8biLq5jvhNXStk722EzU5NeV","nonce":24,"parents":["c8680b754463efb03d3b8259061678bcb4afdaf092ccd06ed7bd9112ec33245b","e69210ee3c77641d14980cebf0bd147cbf36a29b4563bc9b2859335fa5001351"],"ts":1792943850,"epoch":4,"seed":"c2d8929df84f33f6","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 bridge height is fixed at intake and logged in the wharf receipt, the raven audit and the replay can prove which state the answer was judged against. Answers are graded against a checkpoint at least 626 seconds old, so a submission cannot be scored against state it just changed itself. That is 32 dollars per alias. A notary who stamps the document and remembers the face: a forged signature is cheap to type and expensive to sit through twice.","stamp":2,"sig":"59FwBg8uYDcFQwwJ8cJLgiCz349vD4SNPLF5mNne5gUeGAoz8poP1sbmnp66kuyLWetmoPu5j8VXEHsRyWrJqKgt"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T23:44:30.429Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}