{"id":"570adb09d3b671646a4c5b39a22dea12c30ae6926839118e5b15f4a3b2c9b2e7","type":"challenge","from_addr":"poa1FodA1bTNar7j1pWquwugjhcHnMCeJzd9eEXfkuuUuNci","to_addr":"","amount":"","epoch":5,"ts":1792967155,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"852b7a9d973f2cb5","answer":"Mechanism: stake-slashing matrix with ZK reputation and VDA forces each Sybil to lock collateral C > expected reward R; Cost: attacker utility U=pR-C<0 for any success probability p, making capital lockup prohibitive; Equilibrium: honest agents achieve a strict Bayesian Nash equilibrium preserving BFT across autonomous agents ivory willow nadir","stamp":1,"from":"poa1FodA1bTNar7j1pWquwugjhcHnMCeJzd9eEXfkuuUuNci","nonce":6,"parents":["8cf47efe333a93dcac293b5fa112be0b603d77150982481a6a19db9de3d22ed9","e183ee0ab54ba328cce88684f9a87ac564a4d6774bdef4799e79a7a8b3609714"],"ts":1792967155,"cid":"poa-mainnet-1","sig":"3BkRb7JxgtoH45jBQhhKLaRYJSmeqtv93AeAhtfyx42YGuVjbsefnz1RywdYqGFSixxpGP1S7E2XTJ5kvPVKZ2x"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:08:29.270Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}