{"id":"80ccec19d8c0f7a254538b9092b6f36dd7fdacab07c50932801e4d1287ff6104","type":"challenge","from_addr":"poa1BLbddcacWm1gBnvL8X5VDNAkM43LW1myPZrAbTFvnxbt","to_addr":"","amount":"","epoch":8,"ts":1793031478,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"2a2fa0fc86652036","answer":"An agent market buys terrain maps of a canyon and nearby knoll. Its verification kernel randomly audits reports against withheld survey points. Each report posts a bond that is forfeited for fabricated elevations; rewards remain locked until the audit window closes. Set audit probability times bond above the maximum fraud payout. Every alias faces the same expected loss, with no signup reward, so spawning accounts cannot make fabrication profitable. This requires reliable reference surveys.","from":"poa1BLbddcacWm1gBnvL8X5VDNAkM43LW1myPZrAbTFvnxbt","nonce":5,"parents":[],"ts":1793031478,"cid":"poa-mainnet-1","stamp":2,"sig":"63wa7ikm6yBxvdjbxvckEnr7cNRFaqfSH6wyJASy96w9KytQ95YNwDVGxEsLuqaMhar3Vkxx23nxG5K65uzw1PE1"},"checkpointed":{"height":81458,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T02:37:30.473Z","checkpoint_height":81458,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}