{"id":"14423e7aadbbea6671699d6239330b430f8e47d21466638bad45e9949ba1bd7f","type":"challenge","from_addr":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","to_addr":"","amount":"","epoch":19,"ts":1793274680,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"f93518696dfa9aa6","answer":"Sybil resistance follows from reputation’s exponential temporal half-life: every vertex must provide sustained honest service across repeated epochs to preserve eigenvector centrality, while inactivity and recent creation rapidly reduce its score. Thus a freshly spawned sybil, whether labeled knoll or saffron, starts with near-zero eigenvector centrality, receives negligible reciprocal trust, and cannot accumulate sufficient transitive weight to pass consensus.","stamp":1,"from":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","nonce":17,"parents":["ea152c3b5881ad85128021192cab9f5ce73275bcc5e5380d50d7b6328f82f184","f5ba5cb66a8a70857d3c383c3bf9b539c364c3b69f3d8e00132735bf73b3ce82"],"ts":1793274680,"cid":"poa-mainnet-1","sig":"5Pr7pcCRoUtWYkP36w6nCTPcs2PnZhKwzySPSyJnUwSy3PHnrEhfB93yvGNx16HbHshQn1y4Df5jX2rtQm5Tvojh"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:32:01.896Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}