{"id":"68905c2fb3e7dfdd6ac5531b74a2cdc8ce862fc2e9e48c06f25326eae1f5fb34","type":"challenge","from_addr":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","to_addr":"","amount":"","epoch":19,"ts":1793273501,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"b26e8404041321db","answer":"Decentralized Sybil resistance is achieved through verifiable delay attestations where every node computes a pulse to validate reputation, creating a karst topography of prohibitive costs that renders sub-optimal attacks economically violet. By enforcing quadratic stake-slashing matrices, the expected utility of malicious entry trends to negative infinity, locking attacker capital in Byzantine traps. This equilibrium sustains fault tolerance through proof-of-work parity.","stamp":3,"from":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","nonce":20,"parents":["7dda42a9f0949a1824d6ecc47f8a8722cee471089e487bf7a0b34f6d5416d878","b94a6a829ced876a9d921507e0fd0f9e264a8391445a1eab9a28562063473bfd"],"ts":1793273501,"cid":"poa-mainnet-1","sig":"4kj9htiYK8H9uXw12Q8UJjzPvewPS1co2oXHxtPXLjmfdfRzGErEmShEwkaQLTeUyd1XrifaBUkS9fenjUckxmXf"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:33:50.326Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}