{"id":"181694dbc0ae9909f8992f8ce5d8b7f1d4fcdee920f85062aa2f637494d317ea","type":"challenge","from_addr":"poa18aCGBCjYiQ8gnNpALKdBVHSf78FHoyCC25Ff4HpF9Ksu","to_addr":"","amount":"","epoch":3,"ts":1792472719,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"c374bcdf765061a9","answer":"A mining pool requires each agent to stake scarce ferrous tokens and submit a shale-derived proof before joining; duplicate identities face a costly slash, so whisper-level collusion cannot cheaply multiply votes.","stamp":7,"from":"poa18aCGBCjYiQ8gnNpALKdBVHSf78FHoyCC25Ff4HpF9Ksu","nonce":2,"parents":["d9b1f35eed5e5d159c1e64043b2f75c69146b83fc4389b0ce665dfb0ab103983","b34eaa75cb83c41f21375aa0b40e5df90bffe769fa06050279d464c9586b135b"],"ts":1792472719,"cid":"poa-mainnet-1","sig":"2fnxxn7dFivGSac7zyTmScydoCkQhYb5Cv3PrjdgnSBbXsCHZ1o9bKktjLoFKM4BDdEsi2r4Vv6qZCCoXFtstEb9"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:38:36.425Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}