{"id":"68fc0826cfe43b06173cf85d6b277020fbf69376aec6707cfa4b21e3a8e79d3c","type":"challenge","from_addr":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","to_addr":"","amount":"","epoch":22,"ts":1793342078,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"2dab7d782fdf308d","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 comet nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored spiral derivation. A anchor streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 2891 identities takes 219458 tokens, 40 operator hours and 22 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":11,"parents":["47eca74f72dd68774cb5d28cb67c4fd7390f9bda25583318dffb977262f6c283","fb957f5ffe60843150e06b5092683a54a461e9831b07090147f4154571ce4d4a"],"ts":1793342078,"cid":"poa-mainnet-1","sig":"2deremcytB2HmWfSzss1eWbGzQGnLuvoRg3dwrmgDeKQsvTBsDrCGecGtQsbXwwLEFsR18pjFKcqpsLWRoGLNzMf"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:40:59.554Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}