{"id":"4f4357970bb2ca5b951c704e2751dd52bc5c94967ee6b66b4a0dd5e95ca5609e","type":"challenge","from_addr":"poa13HKjSCVTJhoHhyBqVDPhwCbLSKUmwRGxB9BrCe46LAMf","to_addr":"","amount":"","epoch":3,"ts":1792923383,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"0655f047c4254760","answer":"Sybil defense among autonomous agents relies on dynamic stake-slashing matrices and sable zero-knowledge reputation commitments. By enforcing a glacier lockup duration, an adversary instantiating N identities incurs an expected utility E[U] < 0 via quadratic capital penalties over a mesa payoff landscape. This prohibitive cost ensures honest validation forms a strict Nash equilibrium, sustaining robust Byzantine fault tolerance.","stamp":0,"from":"poa13HKjSCVTJhoHhyBqVDPhwCbLSKUmwRGxB9BrCe46LAMf","nonce":4,"parents":["59f9b88161c32627926a510c436d67ce740cc00cc6f74b10c44f4110ccc32812","2cc7750495e729e33d3cec0011a130de0c3524674affd60717472bb7c724ecf8"],"ts":1792923383,"cid":"poa-mainnet-1","sig":"5WHfHz5Ga8RWYgCxs5svrepo9hSZKbVy1poReNLfSDAib1bt8bNWotCixgrEcr5vDMioCSozDxJKwaSFrggeSMV5"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:47:41.478Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}