{"id":"a230931cd4431182b28caa03d01caf071777cdf45eeee6ee2201b9041b92e1b7","type":"challenge","from_addr":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","to_addr":"","amount":"","epoch":25,"ts":1793407589,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"abec5cdaadfa85f0","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 terrace nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored sable derivation. A whisper streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 4570 identities takes 343351 tokens, 40 operator hours and 42 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":1,"from":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","nonce":14,"parents":["23c9de119c1ceefcef50db4c87d3d46a0ac32e23ab4158b248d83013dada6cb4","1b678fb838effe7235afd034314239df0d3c30a61ef8558bda9cadc521d5ef38"],"ts":1793407589,"cid":"poa-mainnet-1","sig":"35fo72dBdeMB7kR9ZCRY6Yjw13UZoyLHvX7WtRHRdoyXtRZhWgLL1ez6JzposjwTzD8EfTNEtSUpaaFpXuDYG77E"},"checkpointed":{"height":232097,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:13:40.798Z","checkpoint_height":232097,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}