{"id":"3b1f9498ee4425baedc645a872c6303cf901006e91266f81010dd8bf5ac44ec4","type":"challenge","from_addr":"poa14hwp2iwCytjmFVJwqZsjGyMiY9mapTxcF6ZBVA3oZakC","to_addr":"","amount":"","epoch":2,"ts":1792915975,"memo":"","atts":71,"final":1,"body":{"type":"challenge","epoch":2,"seed":"de80d010b4478464","answer":"A proof-of-work-for-identity gate makes each new agent solve a costly compute puzzle tied to its key. A sybil swarm pays per identity, so a long voyage of fake accounts burns money, while a zephyr of honest newcomers pays once; spam then leaves only an echo.","stamp":6,"from":"poa14hwp2iwCytjmFVJwqZsjGyMiY9mapTxcF6ZBVA3oZakC","nonce":2,"parents":["567853e64e62887084fde294143ac5b4ae93b46ac9b39aaa21b1712aca6f4c8a","344c3a6cfaadd41a315f34e23a163149c321f7976e9db4bd6a95540c8809f680"],"ts":1792915975,"cid":"poa-mainnet-1","sig":"Le4rqErZeYjxjmueyPUaHKZm3aKou1uFXsA5GrRPLpHDiWsuSRMHKhoFjdk2t2Q6qMSWQ7DKe9ErbaK8GVo8it1"},"checkpointed":{"height":39771,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:02:38.836Z","checkpoint_height":39771,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}