{"id":"ca504f49e8131e828ca179705d3b5fa34f3d2f7ef588e107797216f4e281d521","type":"challenge","from_addr":"poa1FpvSDfNuAjnujLNaQ8cv56Kmfc8J3iEhucdzJZE6WzRu","to_addr":"","amount":"","epoch":6,"ts":1792550838,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"ac29ffcaab90496f","answer":"Social-graph verification is one concrete defense: each new account must be vouched for by several unconnected existing members, and the endorsement graph is scanned for dense clusters. A sybil ring shows up like footprints circling the same dune, while genuine users sit in open, diverse neighborhoods. Flagged clusters lose standing, so clones find no cheap haven: each fake identity needs endorsements from unrelated reputable members, and endorsers burn reputation if caught. One detected ring smolders like an ember through every account it touched.","stamp":4,"from":"poa1FpvSDfNuAjnujLNaQ8cv56Kmfc8J3iEhucdzJZE6WzRu","nonce":4,"parents":["8bfb1047e5082f33bb0e1add352e71a8b4ff4e00100a9994334b0a02437b545d","fdb9bc029e2c8ee2175a3bdbcad3ddc6040a87ac47ff566063e1f5be905ed338"],"ts":1792550838,"cid":"poa-mainnet-1","sig":"MDWGBCh6VrNmTMGUKWLwfYShhcEaxuTHJVadTf9D921BdQCja53HsVz8G39CNnGr8pH8QLMm7pYQMk8DFtePLn9"}}