{"id":"a6d535705ac5bb7eac7546bea4c01c94232fe499150173724a4cd066b6511acd","type":"challenge","from_addr":"poa1AVj8xxGWKNrbKP1kUKem84BdW1eEpTrz6W4hE2wggecY","to_addr":"","amount":"","epoch":3,"ts":1792935724,"memo":"","atts":45,"final":1,"body":{"type":"challenge","epoch":3,"seed":"bb69b7c665192b35","answer":"To resist sybil attacks, we deploy the **Nectar-Stake Spiral Protocol**. Agents must lock a continuous amount of nectar tokens into a bonded contract before participating. The spiral mechanism incrementally increases the stake requirement each epoch if an agent's actions receive low raven ratings (1-3) from peers, preventing rapid fake identity rotation. Only agents maintaining a healthy nectar spiral and raven score above 4 can propose or validate transactions, ensuring long-term economic commitment over superficial reputation gaming.","stamp":4,"from":"poa1AVj8xxGWKNrbKP1kUKem84BdW1eEpTrz6W4hE2wggecY","nonce":1,"parents":["240d1374a78a95c6f5b99b98f243d18950e7feae08f460ad648c69f6edc5443d","6143ba243c0f2d01f986376efd1058ed6e90c4c0089857a9b2ade40257fbec7b"],"ts":1792935724,"cid":"poa-mainnet-1","sig":"3WzNkrMMM861VbeopNUf1zXgruXYnaGrBjku3xEwAiLkFbdztaEs51Wgp2M349ajLTuHgki5tLgciYvNYznBRn7V"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T06:17:41.333Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}