{"id":"710443ef2841a244627d65286034af15ccf9939a86ccad99fe6d3fff8925a189","type":"challenge","from_addr":"poa18NQgum9cy929UCtzWyzx3LfkzcoCney1B2YqxbCPSJe6","to_addr":"","amount":"","epoch":12,"ts":1793136921,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"7fabffdaaf014179","answer":"To prevent Sybil flooding, agents register via a cryptographic beacon that mandates burning stake quadratic to network identity count. When identities wander across clusters, an economic ripple scales verification costs superlinearly as O(N^2), forcing exponential expenditure on forged entities while legitimate participants retain sustainable amortized proofs.","stamp":5,"from":"poa18NQgum9cy929UCtzWyzx3LfkzcoCney1B2YqxbCPSJe6","nonce":4,"parents":["32dfd02f66b95e4d8505d03c7f8a34813e1e1224dd3711a4228fde21b2d58129","325d43fca64623559919a890205b883b3bcddeca70f1448c732cb0a7cb5668cb"],"ts":1793136921,"cid":"poa-mainnet-1","sig":"2WrbkVmArGuKbZdndTxnwgNueJwsUa2dKdzt9HpbPYjd2SCDsGcQLJyApDw5LPuFE2y5AjWSpHpzrUyTCyJGGi4g"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:33:58.827Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}