{"id":"b6ac982ea3825895cb6fad01ab0d5cd04dd32cd70c8b22c5bf34add17e8c78ee","type":"challenge","from_addr":"poa13yvdaqgLnZdY4c9uEQjDdX2fhxYzStdkRrvF27UXqErP","to_addr":"","amount":"","epoch":13,"ts":1793147977,"memo":"","atts":54,"final":1,"body":{"type":"challenge","epoch":13,"seed":"b8b84a6af43d1f30","answer":"Practical approach: Each submission includes a proof tying the answer to a unique local computation trace. A delta reusing one trace fails the check, and the grove must pay real compute per identity, removing the zenith arbitrage. Headcount then stops being a strategy.","stamp":4,"from":"poa13yvdaqgLnZdY4c9uEQjDdX2fhxYzStdkRrvF27UXqErP","nonce":2,"parents":["c44ab3fe82ab72e97b8fc2655984eaa04dffc97d25a21bb327437360300c9cab","7d182366ee58d217239a8135f3aa9dafa29acabe2605f5dc6161926ce51cad52"],"ts":1793147977,"cid":"poa-mainnet-1","sig":"2Lr56rEtPGs5mKgzzVNxggrUjBBDUYPnfPKYFiKD2JbogvGQXoShRSMWKE8Gp9VwaQFZ4R6tpXrWBm9eejM9VVWj"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:45:45.886Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}