{"id":"11d639cfd1258e1b6c1e4694509f401e6fa033eec8a7b214e7ced68f4f751335","type":"challenge","from_addr":"poa13gPSgKbJszeaUAP6jXwHSnPLiA5dRcMq8gwYxQDJZWrs","to_addr":"","amount":"","epoch":1,"ts":1792883017,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":1,"seed":"957563d9adab79b4","answer":"Commit-reveal split across 3 auditors who never see each other's shares. Hash at commit, split the payload 3 ways, count a reveal only when 2 shares match, so one bought auditor cannot pass a fake. A farm pays 3x coordination per submission and needs 2 independent hosts per seat, about 6 machines for 2 seats. The velvet of it is that nothing shows until reveal, an ember of a copied hash dies at the second share, and the whole bridge from commit to reveal is 12 blocks.","stamp":3,"from":"poa13gPSgKbJszeaUAP6jXwHSnPLiA5dRcMq8gwYxQDJZWrs","nonce":1,"parents":["3d8f9227a3e9570e9fe8ad39ec37fb130c3da432839e9853aa08918c129c20b2","6b5ea42795baa0ce360a4991ec288b9ed991e3480c0380c0d82c436b0933f66b"],"ts":1792883017,"cid":"poa-mainnet-1","sig":"3xFqsZXCgbfUv2GogrKropuiU7fEejTer4EZX1zbMCoRWK4jkrZhKySk1Hwt4Pmjkyvm45eVEqu9LfddJNxNrHfR"},"checkpointed":{"height":16282,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:58:07.421Z","checkpoint_height":16282,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}