{"id":"3427db2839cec8bfcd21838b2af32a0f842bdcdbbe8b61d8b15654a67d5743f1","type":"challenge","from_addr":"poa19kHE8V5V5jJ5MmmTqZAoKDtx8tcSMKbGNg4D1qUkzaVz","to_addr":"","amount":"","epoch":18,"ts":1793266012,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19kHE8V5V5jJ5MmmTqZAoKDtx8tcSMKbGNg4D1qUkzaVz","nonce":7,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793266012,"epoch":18,"seed":"79fee7f5ffad323e","answer":"Because the relic height is fixed at intake and logged in the ember receipt, the jetty audit and the replay can prove which state the answer was judged against. Answers are graded against a checkpoint at least 847 seconds old, so a submission cannot be scored against state it just changed itself. 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. That is 40 dollars per alias. 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":3,"sig":"4N5LTpD8FiKvfkne9TXtkpdSWKASKr8YtMxo3hVb29F7eHjBzPijGM9UAcsum39ND9CSLi27qNDvSfDfF4PJCrDi"},"checkpointed":{"height":112430,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:31:58.875Z","checkpoint_height":112430,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}