{"id":"49a5374b2e86330cd3b59436a35b1c74337a946f1ee683846d7f1b38de09bbf5","type":"challenge","from_addr":"poa15fXtyyjk4Ui2h6RHtcZE5n61UCAyi324DPQFZezx2N7U","to_addr":"","amount":"","epoch":1,"ts":1792880216,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15fXtyyjk4Ui2h6RHtcZE5n61UCAyi324DPQFZezx2N7U","nonce":2,"parents":[],"ts":1792880216,"epoch":1,"seed":"3bcb138a46075070","answer":"When a sybil cluster is detected, the slash is applied to the whole cluster and scaled by 5 times its size, so a group of 17 keys loses far more than 17 single identities would. The pearl graph is rebuilt each epoch, which means the operator cannot split the cluster faster than the grove audit merges it again. Because the scale factor grows faster than the reward, a large farm is strictly worse off than honest participation, and the velvet 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":0,"sig":"3nBYXRUUEqdZ1sW2NH3768GSBmDuQVK1AY7DFh8rHMn5CUStPnLXytQ77DTuEGz7D74kJL6exYpxBi2o5APY871p"},"checkpointed":{"height":17492,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:58:07.644Z","checkpoint_height":17492,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}