{"id":"1935bdda4fdd5bc8c299c52092a6a47b82f579bc1769a2ef006113bd9a287acc","type":"challenge","from_addr":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","to_addr":"","amount":"","epoch":36,"ts":1793648504,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":36,"seed":"579f1b68d33f8efe","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 opal nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored quill derivation. A knoll streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 10336 identities takes 212390 tokens, 40 operator hours and 7 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":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","nonce":25,"parents":["154163b96cfb7e977831951bb1141387d542ccdcb8170f3b7c97c4b5b1e45d3b","d1d7f95453aec242bf583fa5678b323d4373ca4188e7c2cb17ab0a9726276480"],"ts":1793648504,"cid":"poa-mainnet-1","sig":"JQPk5voDEcZbmCztkeFACnDWtxrJU5VFdv2yin2b3Djp28ebhXYzM6Tms2LhG8Yyz1TtJ2VCg5dZPMYtG83BXoP"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T15:43:01.251Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}