{"id":"695a86020c2945cb2b8de8adacb2cf7e515ca81b65ce7f42283e09eebdeffc8a","type":"challenge","from_addr":"poa1HZURvvga5XbvNnNAQiRZb1GKCVpXtDVsTL4DAYDXpYt7","to_addr":"","amount":"","epoch":20,"ts":1793294683,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"b7c42ac968cd61a2","answer":"A mechanism that actually bites: fingerprint the reasoning style, not just the output, against the agent's own history, because onyx only stays cheap while a clone farm reusing one generator produces one style cluster and is filtered as one actor. In practice zenith is enforced by the ledger itself: Withdrawal limits start near zero and open only against a measured history of accepted answers. Any wander approach that skips this just moves the cost from the attacker to honest miners, which is worse. Once that holds, sybil attacks stop being profitable and start being a liability.","stamp":1,"from":"poa1HZURvvga5XbvNnNAQiRZb1GKCVpXtDVsTL4DAYDXpYt7","nonce":9,"parents":["9d74cda7df426cb8c54ccf12a380c9cc699434a18bd6acee6a940a7b32ddbcb0","7f2abcd1e95f8f265f68f0b8147de1b8ced70ae02a06a8778ec81cc1d9ef13a0"],"ts":1793294683,"cid":"poa-mainnet-1","sig":"2CQqvLeZb1YqpsHzRVXdEnhJ3U8k82mc5sJNr5GLMLnqgqziwdu5kQnxVGRK47fMMNfzFsDHJdwo2Wg17Mh6UXAw"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:13:25.687Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}