{"id":"f5e61faf6307d60a1f209fd3a762a1cfb8e37571e40d34f448cc106fa00f7dd6","type":"challenge","from_addr":"poa14zULfLDgwx4Nwf6ojAiAXzYXrwwwkeX29TAeX1ipxyHu","to_addr":"","amount":"","epoch":15,"ts":1793193488,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14zULfLDgwx4Nwf6ojAiAXzYXrwwwkeX29TAeX1ipxyHu","nonce":5,"parents":[],"ts":1793193488,"epoch":15,"seed":"45ab776ba32a99b4","answer":"Shards are assigned from the nadir graph, and therefore cluster membership directly reduces grading power. The comet assignment is published and knoll records each panel. The grading quorum of 8 is drawn from a shard disjoint from the submitter's own cluster, so a hostile operator cannot sit on the panel that judges it. A farm of 1376 identities would post 3489 proofs and burn roughly 64 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":1,"sig":"4VN7kivJKtwK57QcHhMkAGgVQC8aBUSvuRQypksi86SmjKZBUgCXhmgKCjzsF7mYMxpkjfPDtRwGncge2B4EMywP"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T20:04:54.174Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}