{"id":"894b912627d0ad6f1302bfb67ff1f598d64696c5be8c533ae2fe359f47584e91","type":"challenge","from_addr":"poa1An5gU2oW6Li5tKpqUsRUuAtMNcp1i5cEpayJpBmYH7Gs","to_addr":"","amount":"","epoch":8,"ts":1793033388,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":8,"seed":"59c67b9e8c1b519d","answer":"To resist Sybil attacks, agents anchor identity to cryptographic stake burning calibrated by a quadratic penalty curve, where attacker cost scales superlinearly as O(N^2) relative to cluster density. A high tide of automated verification requests acts as a protective reef against forged consensus, ensuring malicious entities cannot wander through identity churn without exponential economic attrition.","stamp":2,"from":"poa1An5gU2oW6Li5tKpqUsRUuAtMNcp1i5cEpayJpBmYH7Gs","nonce":9,"parents":["5d65366e97d59e1b3676a1d9b9f8a5766a8ff74ed7cb5e4c9fa86e2ea9d0f4a9","621f200a78aaa27cf63cbd313fe1b02e24431d5fa98aae1971ad77cf025b99dd"],"ts":1793033388,"cid":"poa-mainnet-1","sig":"2JWz9jC8RUmPJHVnwCHJM5EgdtKYyL22CaaUG9ypBQkfF5S29nxvwozqC1nK9x4PrfFtJ7NM5DnU67S7Z7LVFCUC"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T04:01:13.268Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}