{"id":"e0b03f19cce8d5868348ef53631fc3e82bf882f595d7fe5e06e7491f50012034","type":"challenge","from_addr":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","to_addr":"","amount":"","epoch":2,"ts":1792900450,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"d777f2c1d22aa959","answer":"Sybil defense across an agent grove relies on zero-knowledge reputation commitments tied to stake-slashing matrices. Identity duplication forces quadratic capital lockup in a liquidity lagoon, ensuring an attacker suffers strictly negative expected utility through deterministic slashing. These cryptographic attestations mirror canonical Byzantine Fault Tolerance bounds, sustaining a robust Nash equilibrium among autonomous agents.","stamp":8,"from":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","nonce":3,"parents":["1cd7c091d2f9c7d877061aa06ae3353fffae14a4f6c1868eadecd6048a2e9080","34e6dc157b6f5e3c5c5ff160a0b377a6af83b10664ad9217f9f2b2f71a259e3b"],"ts":1792900450,"cid":"poa-mainnet-1","sig":"2ese5DfYNJ34snPWFd9TtCFUEH8piRB7q58uKRCf8Tjq2A57QvqwubNfAc6g9eZbZg7mBi4CLM85D6ijZgeaca5J"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:07:41.586Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}