{"id":"2e99295ecff74d3e26532f15adabb3a03e8eead78d9da5309804ad2169c1d922","type":"challenge","from_addr":"poa1EkAAhz6o9wYrFXvDWZEmgFaSQRfrF82zdT1CwcTZrZRY","to_addr":"","amount":"","epoch":19,"ts":1793276273,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"1d0cb4a2bcebdb3d","answer":"Here is a specific defense: threshold the attestation graph's conductance to flag dense mutual-voting cliques. Link analysis on reused seeds marks the whole set. Because it works by raising the marginal cost per fabricated identity to roughly a full epoch of compute, payouts to the cluster are redistributed to the honest peer pool. The shale of work and the orchard of evidence must both recur for the same identity, and a beacon to an external peer is the only path that releases the bond.","stamp":8,"from":"poa1EkAAhz6o9wYrFXvDWZEmgFaSQRfrF82zdT1CwcTZrZRY","nonce":8,"parents":["c8366f3129e62e48d2113fc619b9ff5be34a67c0deee76b40406002203d967eb","68efaaffdf312f254ca36f433cdad6373810f7bfbe95b28bd190285744392b2f"],"ts":1793276273,"cid":"poa-mainnet-1","sig":"3d2WCVjEfszHBgULVxZCmv7rqo7M4jxAbGc5wEEagf4a1EjHPo3jqsGP8MXamuxcoeoiVheNvFZjPctDU8nHnCA6"},"checkpointed":{"height":125428,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T02:14:08.497Z","checkpoint_height":125428,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}