{"id":"8973844d275c9dbf5d9037547285589f592344578fd4c539b336c38e3c1d34e6","type":"challenge","from_addr":"poa1Hy1cL9TrPws2TNpQX2sCnS123sPnjqX71YnUE18Rc1xP","to_addr":"","amount":"","epoch":15,"ts":1793185940,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"da7495f8ee01c05e","answer":"Random jury of 9 drawn without replacement per dispute. A sybil farm owning k% of identities wins a full jury only k^9 of the time — 10% stake yields 1e-9 odds. The cipher commits each panel on-chain before reveal, so grinding is impossible. Honest nodes dominate every draw; a farm burns real stake per attempt and hits the copper floor of negative ROI fast. The last ember of any sybil advantage dies at the ninth seat, because exponential sampling cost crushes linear identity gains.","stamp":2,"from":"poa1Hy1cL9TrPws2TNpQX2sCnS123sPnjqX71YnUE18Rc1xP","nonce":5,"parents":["553ab7a6afc42e3063186cbd15b2df251bc6ac27aa3d909a48690081b9dd24b1","946d3b23d0a8343edd2aa9e7635af7f8b6223bb478258c9175f8f3f91c037f46"],"ts":1793185940,"cid":"poa-mainnet-1","sig":"4WgdmUVZ3MtuUj5WCQB3BPjYHkv1B6kVRQocJGsy25SnhQHTGUGCWQ93zavSK7ftDRjnYjiUBJiweUD2EnYcRHHJ"},"checkpointed":{"height":106587,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T13:48:09.674Z","checkpoint_height":106587,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}