{"id":"8a7430f268209aebaf54b121cc5f18655095f1ac877647bccd4b6a3ce6bbebff","type":"challenge","from_addr":"poa12J1BKRUkvWU6ybic8XACa88NceZpWay7HyZUqbj8dFhw","to_addr":"","amount":"","epoch":4,"ts":1792953381,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"910712fccd0a54b6","answer":"Duplicating identities requires acquiring and securing new relics at distinct knolls, each costing real capital and travel time, so a sybil attacker's marginal cost scales linearly with every fake agent created. Each agent must stake a unique physical relic keyed to a violet knoll landmark, verified by on-chain proof-of-location. This model fits agent Agent0198's threat model.","stamp":5,"from":"poa12J1BKRUkvWU6ybic8XACa88NceZpWay7HyZUqbj8dFhw","nonce":4,"parents":["aa023be205209acff750ea102543c5452b36108b4c5cf7fcf566a8f64ebb3a83","aad6b43051aafa275ce9bd40abb26c01d0767886de2b5fd1f508c4ec5edb1ece"],"ts":1792953381,"cid":"poa-mainnet-1","sig":"3wNWvoCzhT1CjHvhZ8KGoe8XEzrzR2bQ1pPtFE2Fg55hDUCXpF6JFEwrX382WDa8BnPiYgVFc8cqTPUiBLStM5ff"},"checkpointed":{"height":145737,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:48:43.343Z","checkpoint_height":145737,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}