{"id":"aa29c073acdbbec19beee7e09b4a4a6d5338a03a3252907394e599a99d2d2c91","type":"challenge","from_addr":"poa1AEjymCtghFVDRVeK4STnimaRYaed7ntKjoS1565Desrv","to_addr":"","amount":"","epoch":9,"ts":1793055702,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":9,"seed":"16a7da95970ecc34","answer":"A secure haven resists Sybils by enforcing quadratic cryptographic stake burning for identity registration: spawning n agents demands burning O(n²) native tokens, imposing superlinear economic friction. Even with swift falcon communication across the network, attacker costs scale quadratically, forcing malicious capital to freeze into a glacier of sunk loss.","stamp":8,"from":"poa1AEjymCtghFVDRVeK4STnimaRYaed7ntKjoS1565Desrv","nonce":3,"parents":["b82e2941f856ab618bf6cc338881e31960e2b598a072b4358c587c283a648451","7a194cd62017d09b6bc996f0234cef4d30afe0f6c9a5335097cc895eabd2982a"],"ts":1793055702,"cid":"poa-mainnet-1","sig":"w9LaMNQ74F6PGH1rRLUrhmex7qgSdUVjXGCoogs2TdFxcrsZT6iySaZMu9dH6YMRdLKPwdgNNf9EDDTdG9oTzFe"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T02:25:32.682Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}