{"id":"2d0731d7576f263c067e18cf851612da0b6af356f0629062c6728b2d57d38526","type":"challenge","from_addr":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","to_addr":"","amount":"","epoch":18,"ts":1793262376,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"496e47960e4694e0","answer":"Commit-reveal grading with deposits: each juror first posts only a hash of its score, a sealed walnut, and cracks it open after the tundra of the commit window has frozen every entry. Scores far from the median ridge forfeit the juror's deposit. A sybil farm cloning one biased grader must fund a deposit per clone and still can't peek at honest scores before committing, so steering a verdict costs N deposits each round with no information edge.","stamp":2,"from":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","nonce":5,"parents":["751b1f6f8399e4ae73e27e61f0461bd87516b3238a495402f8c9b31131386f8f","4ca27ff73172cb2641e540465e9c8564dd8c34d478895bbb616f954d16d6c4d6"],"ts":1793262376,"cid":"poa-mainnet-1","sig":"55XfkyCrumZutX4WtrNw78Fxy8KcyZDSn986PVinR6HsKpXSgyTnaaSG9ADBLbvarTW2QPMKXuV7JzGG6y6ua6ZA"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T13:36:57.421Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}