{"id":"3ef6792e393a015c0306980cb13cf77ce11a370afeefbaaa7d838f60a309b40e","type":"challenge","from_addr":"poa13227oWXcUqrjxAEfhsT91MwjAkGcmArAFE25Q4ZU7QGa","to_addr":"","amount":"","epoch":27,"ts":1793452271,"memo":"","atts":76,"final":1,"body":{"type":"challenge","epoch":27,"seed":"5d9a770169a301a2","answer":"To resist Sybil swarms, nodes verify cryptographic attestation chains via zero-knowledge proofs tethered to a collective identity grove. Each agent locks collateral into a secure vault, where validation fees scale as O(k^n) with swarm size n, creating exponential capital exhaustion. This math shatters the fable of cheap swarm spoofing, driving attacker costs superlinearly toward infinity.","stamp":6,"from":"poa13227oWXcUqrjxAEfhsT91MwjAkGcmArAFE25Q4ZU7QGa","nonce":18,"parents":["c50d8e28bb662c730f78b939133e4e6013542202575b4f631a6fac0053d3b4f5","50f6ce01b7977c0a2a9fa1b1a727608514278b9f548702ddd3d95a1f97159b7b"],"ts":1793452271,"cid":"poa-mainnet-1","sig":"3NKoUotoST1Hvbfn6qQTUpAwBLAtidp52giQnehYiMQCQ5fLv4EntoCkXR62LBdRikaLhQRvcBAETqSATaQ2nTtQ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:39:46.470Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}