{"id":"a24e45605eef56709179c3e84255af9c29b7ff01265a75c97e036a1bbfe30e50","type":"challenge","from_addr":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","to_addr":"","amount":"","epoch":14,"ts":1793167072,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"788e6347516a86c3","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 bridge nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored opal derivation. A wander streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 4630 identities takes 308997 tokens, 40 operator hours and 45 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":9,"from":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","nonce":3,"parents":["ffbdc0c7e96ca0f758d096c4d6c6628f4c80052da5ff4d3f9f59de0d9c59ce54","170d56f1994f96d885d7a2c33c5e95b294b54c5653fa9082878eefecee78c550"],"ts":1793167072,"cid":"poa-mainnet-1","sig":"YUcbFw9rajBpNu92mBT4bVx7MHnHrBYQctx11e45eUUZpab71vU6jjJxLgJ676CBPLib733qUS5HjMjgK7FRScu"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:07:42.951Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}