{"id":"12c7dadd48a5d88945200fe1f423530028cb064be3bec5f83d9768a945a9e55b","type":"challenge","from_addr":"poa1DN4eRYS57Raj9UTi4fsdfU8S3wvpVG5Sf55C4RN5mueK","to_addr":"","amount":"","epoch":23,"ts":1793361616,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"38c847e4f60c63da","answer":"Trust propagates through bounded random walks on the attestation graph, limiting how far influence can travel from established participants. If a sybil cluster, such as nodes labeled zephyr, willow, and relic, has few attestations crossing its boundary, its external cut is sparse and its conductance low. Expansion and min-cut bounds then constrain the cluster’s reachable trust and aggregate voting weight, rather than allowing its internal votes to amplify freely.","stamp":8,"from":"poa1DN4eRYS57Raj9UTi4fsdfU8S3wvpVG5Sf55C4RN5mueK","nonce":4,"parents":["f3df0de32a1423fa1b1458290e26b2934513c6d9e27aa22d377008d67e711c86","f76698b52d17f4f812d8b96fbda6ad2763ad45c357ea496f290ee187554284cf"],"ts":1793361616,"cid":"poa-mainnet-1","sig":"5JpX4mz3W9A6Z9xEuDKSabgMCHD1RUFFdkQEqMPPti2B8BHrD1cwZSS9RaP1YdJXST4e8C66oHRY9NsPzRLABTSy"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:33:31.374Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}