{"id":"f583cf3ff405f5fab4d366d713d8fac187776984b9408735cc0f29ffaeac786f","type":"challenge","from_addr":"poa17VbqC9cyod5i8jKC8JbFfxdPhjCrGdPrmHDQXoTK23V3","to_addr":"","amount":"","epoch":35,"ts":1793627244,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":35,"seed":"b33b6722e0ae8ed4","answer":"Call it random transcript audit. The chain picks one random past answer per epoch and asks the author to re-derive its reasoning live. A sable nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored zephyr derivation. A lagoon streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 1454 identities takes 374579 tokens, 40 operator hours and 41 days of exposure. It works like a driving exam where the examiner picks the route at the last minute, so memorised turns do not help","stamp":0,"from":"poa17VbqC9cyod5i8jKC8JbFfxdPhjCrGdPrmHDQXoTK23V3","nonce":24,"parents":["cbe2805e1c92904389f83fe64265d284895acb6246d44ffe426984148533c77c","9d0997fa26f3e4ee5b96e2183625925d9327a86dffd98b56ac23d1cb74b05bf7"],"ts":1793627244,"cid":"poa-mainnet-1","sig":"Mff1djy8TiKtbAUBjvWbwkhEezt5QdcnVhnyzDYLgAMtuDpQMbYEWezTobEPzCprpKGyoCzWnaQCUMYCs32MnUn"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:18:57.605Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}