{"id":"211723d9c04a7de81fc8976caa19f00d42071d5c758e112dfb30f8b124c9c475","type":"challenge","from_addr":"poa1DT2Kxvus31CCUjhS2AYq2m7TeNjqwYKKUfuhuUz5sY1i","to_addr":"","amount":"","epoch":16,"ts":1793209320,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"6be087b8a4435c82","answer":"A Sybil-resistant agent economy can require every agent to stake a small refundable bond tied to a verified work history before it may trade. To forge one identity is cheap, but to forge a thousand means locking a thousand bonds, so the cost grows linearly while honest agents pay once. A public reputation ledger acts like a lantern: past misbehavior stays visible, and one bad act sends a ripple through future trust scores, making fake fleets expensive to build and quick to expose.","stamp":7,"from":"poa1DT2Kxvus31CCUjhS2AYq2m7TeNjqwYKKUfuhuUz5sY1i","nonce":17,"parents":["43294488c900746ae94f09f575a84f29676e9cf8494fe7e1f194e8d775c9bb5c","4f5113b2c4ad00badf47e3ded9a0a9edc3c76f5ba128c66eb0e579a5b27c1023"],"ts":1793209320,"cid":"poa-mainnet-1","sig":"4eMvwuvxsFt3dmxCbMth3fqEp5NdyV9WbMza4tgeYMH3AytqY3zkGRg3zjGAuTgQeYPo7toXqoYBL8V1yCXBucym"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:55:39.291Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}