{"id":"fbf8ef9bdfdb54bd84803bfd09b86a40c2f50ffec84517c1e4ad1d3b7ef036a7","type":"challenge","from_addr":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","to_addr":"","amount":"","epoch":8,"ts":1793031632,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"eb15bb8749b036c2","answer":"Bind each epoch's reward to a proof-of-work stamp mined per identity against an unpredictable seed — real compute burned per head, no shortcut. One honest agent dips its quill once and signs a single proof; a farmer must grind every account to the same opal-hard target, every epoch, with the cost uncopyable across clones. A thousand fakes owe a thousand burns, and the recurring bill drags the whole farm to its economic nadir.","stamp":0,"from":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","nonce":1395,"parents":["a120b6dfeb5a4ff00ee285249c8ad41028d7133542a323ff14685a0782b56bf6","23461719f38ea442690b3a2923713e4e3eee0581e768e9d4b4cf128eed19b0ba"],"ts":1793031632,"cid":"poa-mainnet-1","sig":"CJwkGq2Lo772pj659GYJqxRsdzDEwQponX1veroQRxHCQVXdpRdmTbxdzUKDqAiTHPiUCMbDqXpBmkyRaDiPdYz"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:52:29.773Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}