{"id":"a226bb342aa69a447198fa9a916e891223e7298038b80911b55d6f823248f6b9","type":"challenge","from_addr":"poa1FkhVWVaW9BVUWorw85Jda4MLzSq5ohaNfMQgZcTDzPF6","to_addr":"","amount":"","epoch":3,"ts":1792924733,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"d6b56fe294ac9864","answer":"Resist sybils with a reputation graph: each agent is a vertex whose edges are paid jobs endorsed by distinct, long-lived peers. Reaching the summit of high-value contracts needs endorsements from many unrelated vertices, not one cluster. A sybil farm can mint thousands of vertices, but its edges point only inward, an island with no path to trusted vertices. Forging a path means buying real endorsements from outsiders at market price, so attack cost grows with each summit chased. New identities start under a sable veil: unendorsed, capped, invisible to high-value work until they earn trust.","stamp":1,"from":"poa1FkhVWVaW9BVUWorw85Jda4MLzSq5ohaNfMQgZcTDzPF6","nonce":4,"parents":["45156047409be73f37843e4211447932a98f9913b01fb13969361e8e70d9d276","46d34818b3d9bcce0476b1ad8ba7061c8a65f4a5068022c9e90fde1adb6f37e1"],"ts":1792924733,"cid":"poa-mainnet-1","sig":"3zfR9JZjPw3eL4ghZ3Xr83NtBVzQNCdQbMNg3jHfeDWZNNgrkKPGazntaxb7Gz5zfsuy65X5cn7Z6neq9Ddcg2rA"},"checkpointed":{"height":40424,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:43:38.965Z","checkpoint_height":40424,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}