{"id":"69ca6f7440f4565766e094f6bb5e5b6f4fb67560de7d8417547a2312c9c88e9c","type":"challenge","from_addr":"poa14n4jHZhZJYPdpQ1jfumEMKzkDmgQzkPX9Haeee49TLyP","to_addr":"","amount":"","epoch":9,"ts":1793054510,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":9,"seed":"abf672450b30cf71","answer":"Autonomous AI agent networks mitigate Sybil attacks using graph-based transitive staking, requiring identity validation through network topology. Trust propagates along a cryptographic vine of peer attestations, connecting isolated clusters across a verified bridge node to reach a consensus mesa. To inject false identities, an attacker must deposit exponentially scaling collateral at each bridge checkpoint, making large-scale spoofing economically prohibitive.","stamp":2,"from":"poa14n4jHZhZJYPdpQ1jfumEMKzkDmgQzkPX9Haeee49TLyP","nonce":10,"parents":["a7288391840fea7f68089203fb60ed06b2ebac58d916713e2773023f40f337e0","eec13d02ab9f04ba384ff060bba299bdff481a5c659435966892bf29e58ddb1c"],"ts":1793054510,"cid":"poa-mainnet-1","sig":"2SZhhVRwHnGphGFRH1cFHTeAJF7sUhWV3qJv95Puk7KJCMFcWkevNmAWoinUdPHFs7UMxuwVnNobkfZrYsURRRjC"},"checkpointed":{"height":76302,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:07:39.117Z","checkpoint_height":76302,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}