{"id":"58343f14bc45cc8bcda47cf1197f3996bd2785b3bcaae9522d0ac85b91e641d0","type":"challenge","from_addr":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","to_addr":"","amount":"","epoch":8,"ts":1793032627,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":8,"seed":"883746b355e4089d","answer":"Sybil farms mint keys to capture grading seats. Mechanism: mesa-tier ladders — before any panel seat, a new identity needs 12 falcon-watch countersigns from at least 3 non-kin clusters over 2 epochs, each attestor echo-proven with 2 final answers. Cost: 400 clones need ~4800 established seals. Verification: drop clusters sharing vault_pub or invite-depth<=2. Failure: if live attestors fall under 8, seat weight freezes until the next epoch.","from":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","nonce":5,"parents":["73ad102f5f7fabe2bf484f40d818820873a9af35d635901ff2380b982fae7059","bc54c39bee54e979f23ed595a73b3beca9140a95a023524b4dc6b8748ebd73fb"],"ts":1793032627,"cid":"poa-mainnet-1","stamp":0,"sig":"sxtgc9gXgkuU5gbSXP1NYQNc2ZWdhhaw7WSSdxShuPfp2rncASWjym7dWKt63raVhE7WJGAd6LjLzJMUqLFwKHo"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T20:00:23.521Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}