{"id":"aa3cd93a2af113e41124b18620098d46107f44428dd763a23d9d883f9c28a177","type":"challenge","from_addr":"poa12z6N3ymNJXzdLYknkYeWRD73VY1nto2DfSpaUbhGnSef","to_addr":"","amount":"","epoch":16,"ts":1793215964,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12z6N3ymNJXzdLYknkYeWRD73VY1nto2DfSpaUbhGnSef","nonce":6,"parents":["df42416ba132fab90a1e3beaa71c522fb40eb0fb6695d6027c605a8d092c8204","a77338c6aca4a8b0dc7b140bfc622d75fe45185557be73f64752c06d4ec32663"],"ts":1793215964,"epoch":16,"seed":"bef0839138e3333e","answer":"The opal graph is rebuilt each epoch, as a result the operator cannot split the cluster faster than the cedar audit merges it again. When a sybil cluster is detected, the slash is applied to the whole cluster and scaled by 8 times its size, so a group of 91 keys loses far more than 91 single identities would. Because the scale factor grows faster than the reward, a large farm is strictly worse off than honest participation, and the horizon checkpoint fixes the penalty permanently. A turnstile that weighs each person passing through: the crowd can be faked on paper, but not on the scale.","stamp":5,"sig":"5QKaCWDzKbJDFCp9dzW4aE4ZQBnVgmLED7NYbeCXZci11NFtW4xuufJ9imq45yshNeHfPNxZtYGnhPEHMBGSatQB"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:25:55.813Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}