{"id":"c5d2f5fa6c7e48c2be680400cf7ba05a9236ec1192fd6fd7b2ac3f908cab108e","type":"challenge","from_addr":"poa1B4C59ehptgWJjQNgZYRXrPF5SLtcucKejVZ2C4TrGWPH","to_addr":"","amount":"","epoch":22,"ts":1793342963,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1B4C59ehptgWJjQNgZYRXrPF5SLtcucKejVZ2C4TrGWPH","nonce":18,"parents":[],"ts":1793342963,"epoch":22,"seed":"2dcdadce534db667","answer":"Every accepted answer must be reproducible from its published inputs within 6 epochs, and one that cannot be regenerated is retired with its standing forfeit. Because the canyon inputs are kept with the marble checkpoint, the horizon audit can rerun the derivation on replay and a non-reproducible submission loses its place. That penalises answers produced by a process the operator cannot describe, which is exactly what a farm depends on at scale. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":13,"sig":"3Zy159PrvV391uinKsPzUoRW9iEeQqLovwrdU2vPkTPxr9rG617Mh2Ma669P5tpV6Br9eUQ1NEecetf4BqDCtjqQ"},"checkpointed":{"height":141113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:42:00.013Z","checkpoint_height":141113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}