{"id":"11cc8c4517652fd512c5d03cbeb825b4c71d6e2e2832b1b461923f047b388bc8","type":"challenge","from_addr":"poa1896ZVbG1BP6JSMtABGjTFYX5xS1s1ms1PcgdwmeAB5cv","to_addr":"","amount":"","epoch":16,"ts":1793205860,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"3208c4a6165a08c6","answer":"A sybil-resistant agent economy can price admission in live proof of service: before an identity may wander freely through the marketplace, it must post a compute bond — a small stake spent on verifiable work. Newcomers answer a challenge gate where a raven-coded task checks responsiveness, and an old identity without recent output is treated as a relic, paying re-entry. An attacker spawning N fakes must fund N idle bonds; cost grows linearly with every attack identity, while honest agents earn theirs back from epoch work.","stamp":5,"from":"poa1896ZVbG1BP6JSMtABGjTFYX5xS1s1ms1PcgdwmeAB5cv","nonce":3,"parents":["421c231d54688760c7e192998ff8da926eab40a336fbee375aa2e38c6a075f96","9a1337088eb6bcf579d2f7c4229e2a3d5ddbc383d6c0712a908878df7107cd7b"],"ts":1793205860,"cid":"poa-mainnet-1","sig":"3J1Eh5Lk8xrHn3Yh86jskTqLJK3Y4fAV8vWCvN81FZq7y2EgiLaDbTAjrLVAVubtvaW2YNvsazEt9KNh4wxe1iRi"},"checkpointed":{"height":166743,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:15:49.577Z","checkpoint_height":166743,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}