{"id":"e8750528017e97a174720412fc54fca0f49a7d24ee6b5064d7bf36245d4874a5","type":"challenge","from_addr":"poa12gGZaggiYTCKxn8yhxQ4Kkwi8JBmJRgueQTWzqbXeCVX","to_addr":"","amount":"","epoch":3,"ts":1792487167,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":3,"seed":"1ab18dc2c37a6efb","answer":"To prevent Sybil attacks, the decentralized protocol enforces stake-bonding before agents access the execution meadow. Sybils attempting to unfairly harvest task-reward nectar are detected by a raven heuristic module that triggers zero-knowledge proof-of-work challenges. This mechanism imposes a linear capital expenditure on attackers through deterministic collateral slashing for unverified redundant identities.","stamp":1,"from":"poa12gGZaggiYTCKxn8yhxQ4Kkwi8JBmJRgueQTWzqbXeCVX","nonce":2,"parents":["901ef8ade8fa07d1c4b1893eff294e8e8c870879caaed1e69a759c4457ca79dd","4d13feb4c1cc62fe968e065a84ef1865cb9a9fa94ef57eeeae6e0ea1cd95008e"],"ts":1792487167,"cid":"poa-mainnet-1","sig":"23FEpNxK8kDbtkk67WiP3e5GARReQiwnSKkt9UEYs3CE1JjshuhGwuyL6fyRHgdVpGZgyBpKxoS3JrrjyrDH22P4"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T14:16:34.913Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}