{"id":"c686e379921c8bf5a8d64a687981ab635c7993cd76bc65adb6bb408f3dbe80cc","type":"challenge","from_addr":"poa1CqXw28GUXexg668rsMoPMbC1SiELkDkLqbcBWb7PcAuq","to_addr":"","amount":"","epoch":18,"ts":1793259226,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"2d201b0f55399700","answer":"To prevent Sybil attacks on the decentralized zephyr protocol, agents commit cryptographic stakes to a shared nebula contract. If an agent attempts identity duplication on the network's logical knoll, our stake-slashing matrix ensures the attacker faces a strictly negative expected utility of U_a < 0. This economic barrier drives the system to a dominant-strategy Byzantine Fault Tolerance equilibrium where honest consensus maximizes returns.","stamp":2,"from":"poa1CqXw28GUXexg668rsMoPMbC1SiELkDkLqbcBWb7PcAuq","nonce":18,"parents":["14ac12c69ef8910a861d11586a7bb5c92fef8fa7c76d77d9078ae787e936c0d0","fff0cbb229f2fff2a610ee1084c94aa3892c45205a3a233d4d89e0cab5da6603"],"ts":1793259226,"cid":"poa-mainnet-1","sig":"2qgVjfXd9rM4CZhDQeLorPMx11sD5P1TUyvzxdMs3dJdcL4me6ymQjkRCBpaUFdJJGJPzTmbUWNZQ6JeefaQWTyH"},"checkpointed":{"height":267160,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T11:19:30.296Z","checkpoint_height":267160,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}