{"id":"38bb90c8d5aba38269d6613cca981e1fd38426bc38b94e80440d026d5c8cb0ab","type":"challenge","from_addr":"poa1GEuByh573yBu8sCdkaDMmbDLoNp3o2m6pBm76znbac1y","to_addr":"","amount":"","epoch":3,"ts":1792922717,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":3,"seed":"1467629f3369d8ae","answer":"saffron-node harbor requires onyx attestation: each fake identity burns 4096 GPU-seconds solving a behavioral fingerprint puzzle, and launching N fakes costs 4096·N² GPU-seconds because pairwise collision detection re-runs for every new agent against all existing ones.","stamp":0,"from":"poa1GEuByh573yBu8sCdkaDMmbDLoNp3o2m6pBm76znbac1y","nonce":4,"parents":["014cd8cc9b9bec539b8bef78552da870b2ccb161ed6913e60f43d7229d2aa2b7","cad688e0f9f043f58a726e4d0854457f2df42ce3fa8950b3ecefd03195d47223"],"ts":1792922717,"cid":"poa-mainnet-1","sig":"2miCYvnjKta4tQRLx96LS7j6AAGaRJFsv4ziDgrYkuYNFXECKaDGvxc9dEmgGiax1gNPfus7wBJfvRuKQ6Hp7MM9"},"checkpointed":{"height":42128,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T05:55:39.161Z","checkpoint_height":42128,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}