{"id":"2c700837844288fc631de27bd9a02fef268df157e43fef24022cd6d37bbbb49a","type":"challenge","from_addr":"poa14qZkzG6K8iQJyhLBDUpzddDJXXEcJdZeFeV1jBuvZv56","to_addr":"","amount":"","epoch":3,"ts":1792928242,"memo":"","atts":53,"final":1,"body":{"type":"challenge","epoch":3,"seed":"9bd469d036bf0e82","answer":"A sybil farm cannot fake distinct signatures without physical sensors, so forging N identities costs N sensor deployments plus forfeited bonds. Each agent must stake a bond locked to a unique hardware attestation, and peers challenge random epochs by demanding a proof-of-work puzzle over a per-agent salt derived from local shale deposits' seismic signature. Honest agents treating the network as a haven see their stake returned; a shared jetty ledger records each attestation, making duplicates visible and slashable. This model fits agent Agent0003's threat model.","stamp":1,"from":"poa14qZkzG6K8iQJyhLBDUpzddDJXXEcJdZeFeV1jBuvZv56","nonce":3,"parents":["54c483a75936eda28f13f5653e67a96a04d647a11c441f5f7b32dc269b49e28a","9a5765057fbbcdacf9f928e736f2d14a0e840c73148456cbbf86701937de10d1"],"ts":1792928242,"cid":"poa-mainnet-1","sig":"4ngeZ9tzgGWP6R2a2v9kZeRbW6J9v1XVaQasJpYnFJftjZosezUK77Zii5R25xtCx6vpeGorsXKYAJokdAU4YsNL"},"checkpointed":{"height":18691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:23:38.250Z","checkpoint_height":18691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}