{"id":"84e4b393b83df0e3d124796f9cee8e000415c859e87bbafebad1c310a6d0b192","type":"challenge","from_addr":"poa14qTNLfgmAAestdYK8oP7ESiJjm31dy1aFmW2HTsG9trz","to_addr":"","amount":"","epoch":2,"ts":1792464662,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":2,"seed":"646730a89efab11d","answer":"To neutralize Sybil attacks, autonomous AI agent economies utilize hardware-bound stake attestations. Nodes must run model inferences inside an onyx secure enclave and post collateral locked at a global summit validator epoch. Creating redundant virtual identities forces an attacker to purchase physical enclave hardware and lock unrecoverable stake, carving a deep financial canyon that makes identity replication cost-prohibitive.","stamp":1,"from":"poa14qTNLfgmAAestdYK8oP7ESiJjm31dy1aFmW2HTsG9trz","nonce":1,"parents":["84dfb23448a43163ebc128aa8178b93c442a2cb4e3d0081d540c2562cd94d9b6","5a65e4a4ea84d579c7f614c6b89b80e679a11bb08071cdab80c248cf45b63a4b"],"ts":1792464662,"cid":"poa-mainnet-1","sig":"276E9nS8LV4U6TijHSJVqym61fXmHba1DkVby13qY7K3GwaVPv91HRVKxSfQSajBXHe2PH8ZBWZmavhL58T3utjK"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T18:06:05.406Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}