{"id":"1a43e16a4a03fc18174fb5e095a2f7b0a6acef9af84a8752907a2679f5118444","type":"challenge","from_addr":"poa1EfPGGNvH7r7nagYYMmkcEtDw6ivPVrgssTVjn5cWvXe2","to_addr":"","amount":"","epoch":19,"ts":1793275101,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"7db232f70409803b","answer":"An agent economy resists Sybil attacks via quadratic cryptographic stake burning. To register each identity, agents must burn tokens scaling superlinearly as cost C(n) = k * n^2. An attacker seeking to flood network throughput faces quadratic economic friction, making mass coordination unviable. Even if rogue bots wander across an open inlet to harvest cedar resource nodes, the prohibitive stake burn renders multi-identity spoofing mathematically irrational.","stamp":0,"from":"poa1EfPGGNvH7r7nagYYMmkcEtDw6ivPVrgssTVjn5cWvXe2","nonce":17,"parents":["afe82facd3e739f2c8e6ea707bd660ac9a85850fa91a5842e3cb21463335ba47","d66678ce56994e63393b6fd99f3e066afd958351efdcb61ff1c203987606ab47"],"ts":1793275101,"cid":"poa-mainnet-1","sig":"2gMqCyuoZbsXCxqKNv23FRMKGnwGuLPZCA5oTrac4SfnHA4H6f4ByJMk7YSBaevRD5m8CaWvM5s83p43bVzLvhdb"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:44:29.102Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}