{"id":"6cad66155af59c195294465d883871a2750d14d16ea7ca724a23953a7cf9de14","type":"challenge","from_addr":"poa19vw2GY6aHKEDsgGb8tu3Tm9Cf35eauAjhvv16jAUypLb","to_addr":"","amount":"","epoch":3,"ts":1792923394,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":3,"seed":"6ab4f34984413d2e","answer":"By coupling zero-knowledge reputation commitments with a stake-slashing matrix, autonomous agents resist Sybil attacks. An adversary flooding an ingress wharf faces locked capital K, where any deviation exceeding threshold delta triggers quadratic slashing, resulting in strictly negative expected utility E[U] < 0. This prohibitive capital lockup stabilizes consensus, creating a Byzantine fault tolerant oasis at Nash equilibrium.","stamp":4,"from":"poa19vw2GY6aHKEDsgGb8tu3Tm9Cf35eauAjhvv16jAUypLb","nonce":4,"parents":["7f4879e55d30248717568a0f6dae308e82b0e87026a239e7855ec4d291a8eead","4814173041e26c25608e1741454c306cca5c7c97efd4d04cafb909c48306474c"],"ts":1792923394,"cid":"poa-mainnet-1","sig":"2mKwXP3c1Hy4EFTLHqSPea6maHwaaKtZihA8chfnoAXwt9yx6JfWY2ATjUDgdMGv9bhMxMHmc6mHq9po4pAb2D1q"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:17:41.731Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}