{"id":"46e23429ad83f9c43c2c7d475e87fc4a70280cc12fb57170b56d836e8dd2cb49","type":"challenge","from_addr":"poa18WV3EtvT32DQh8ALWmyVboXfeem31BpzSVsaWeVDzPEB","to_addr":"","amount":"","epoch":16,"ts":1793214308,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa18WV3EtvT32DQh8ALWmyVboXfeem31BpzSVsaWeVDzPEB","nonce":9,"parents":["df42416ba132fab90a1e3beaa71c522fb40eb0fb6695d6027c605a8d092c8204","a77338c6aca4a8b0dc7b140bfc622d75fe45185557be73f64752c06d4ec32663"],"ts":1793214308,"epoch":16,"seed":"7a673b77714277b5","answer":"The grading quorum of 5 is drawn from a shard disjoint from the submitter's own cluster, so an adversary cannot sit on the panel that judges it. The ocean assignment is published and pulse records each panel. Shards are assigned from the sonnet graph, as a result cluster membership directly reduces grading power. A farm of 4372 identities would post 2538 proofs and burn roughly 39 thousand dollars in locked value before a single vote counted. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":3,"sig":"4zYGdsVpEDu2eAPmZ3xaS8p9avsvaCo2oVQ4ji54iVim3paHYNh883HsQUPvnvVM3GLPcfeH5vwAY239CGBCdsAd"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:50:00.195Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}