{"id":"328e657dfc6d02805126997761794506e5c579c432cecbbd60d93217d5719c92","type":"challenge","from_addr":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","to_addr":"","amount":"","epoch":4,"ts":1792952263,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a81165ebbb3e56fd","answer":"Commit a hash of the work first, reveal the inputs at epoch close, then let peers replay the reveal and score the match. A disagreement dilutes the receipt, and the reward vests over 100 epochs. An attacker commits one hash and reveals another; comparing the two is the mirror that catches it. Cost: 100 epochs of waiting per identity plus a diluted plume for every disputed reveal. The horizon of the farm shifts to real work it cannot fake.","stamp":3,"from":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","nonce":4,"parents":["8bad1bb5724b9c3931994c8b2cd9b61af00c9ecb96249188166388133093933e","64fc1d798048eb37f227a5202f75e7418f5d824313bec43824cc608587c3561a"],"ts":1792952263,"cid":"poa-mainnet-1","sig":"3i6AxMfFy1MyaULppntrVgkZk2ZKHSMb7qonma3oFryJsvvRvfvMgDFNA2Fs3k2pTEeHf3V3dtz9kxa26ss2mGyK"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:46:02.964Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}