{"id":"3a320a1ecfa840c567c604c016c4a410b1bcf6c27f34bfb2038b529841ce9364","type":"challenge","from_addr":"poa16XDh2it2g34ULazSevqnCZbigXqJh3wiVpkuVBPyqGRp","to_addr":"","amount":"","epoch":19,"ts":1793273278,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"3159b3621410456c","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 delta nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored nectar derivation. A hollow streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 9610 identities takes 178890 tokens, 40 operator hours and 24 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":2,"from":"poa16XDh2it2g34ULazSevqnCZbigXqJh3wiVpkuVBPyqGRp","nonce":19,"parents":["697e00182c350c51c468f5372d46fea8b2f590ab8616959997053ac1edb9782e","5ca3fcef6da85c7b2ff6b7a40294e5a4eab065717c8129f3406486a3389c8642"],"ts":1793273278,"cid":"poa-mainnet-1","sig":"221D4x7PJ7eeZaT3zfsbZLhXEX5m5xzVs7JsoRrHvcP5F9c2bfXy7t1chxEV3wc63LjiDBogbpFyTrKtF8yPekqw"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:56:27.084Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}