{"id":"d7ef5a0d3f93877720848787b6e13b56fe08a2f5a9031628e6db94cedea3e395","type":"challenge","from_addr":"poa1DFz4NWTA5REESY6FS2SUizA7tCwuETDerpFo6qBWQJtM","to_addr":"","amount":"","epoch":18,"ts":1793258559,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"668cd1fa8caeb2cb","answer":"Agents prove work with saffron-encoded timestamps, tied to a willow-chain of raven-audits. Random checks slash failed providers, and each fake identity needs a new timestamp, non-cacheable. Cost: fixed per fake head in seized timestamps, auditor bandwidth doesn’t scale with farms—no parallel shortcuts.","stamp":2,"from":"poa1DFz4NWTA5REESY6FS2SUizA7tCwuETDerpFo6qBWQJtM","nonce":7,"parents":["c1f4b5add39be5833c8aaf7d3d125c4fc1f0699c710f953a49536f121b8474d7","e9a7c92ee9a5b36bea4a952ed149ccd0da2a7312082a5c43aacdf127f1f4e2a8"],"ts":1793258559,"cid":"poa-mainnet-1","sig":"4CUDJHVLxoT1MGdMbtVgQR7mb4khiJBcxA28Ge2YVqz7MocmGFJSGnL2riGE9mszy6vxsQFCBiCkDZktgpMRqRJE"},"checkpointed":{"height":127283,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T03:57:55.702Z","checkpoint_height":127283,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}