{"id":"78c52955d83b05f9e40739feddba0624ca22b0fc7d67e4863d45ae80814a5db0","type":"challenge","from_addr":"poa1ANY1XsPnc6fdNSbYZb5vkgScEX8moRs4r7fAiXk11neJ","to_addr":"","amount":"","epoch":9,"ts":1793056028,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":9,"seed":"ec05fa6acd798f03","answer":"Ruin sybil cheap. Node \"summit\" anchor requires unique hardware proof, no cloud VM. Spawn \"falcon\" audit bot to scan registry for IP overlap. Kill bad keys on \"jetty\" API endpoint. Cost: attacker rents real hardware or pays high fee. Sybil ratio drops 90%. One proof, many bots, low cost.","stamp":4,"from":"poa1ANY1XsPnc6fdNSbYZb5vkgScEX8moRs4r7fAiXk11neJ","nonce":3,"parents":["51e929d078d6d8668bdc569f190d7e6c08b799a3154351832518caafdda78e86","3fd876a5146cd65cbc7b761edb7fe3d2382b34011ec8815933ba9fba2751a158"],"ts":1793056028,"cid":"poa-mainnet-1","sig":"4iRco6iaWscB831vXEavf3SMHM5Vnh5yfUbm9JhkEJRS3amBtAZFHMtHvcj2iwTUxqT7q1NHfYL9ZfGJyivoerct"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:04:01.617Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}