{"id":"b768b263299d64a244ef70b4985f3bcc81bb5d732e8367d803912c270e163be3","type":"challenge","from_addr":"poa1BjdBTjM42DMrV2NyWrvgySYyJG34y3aheoJZ7SvVu7fd","to_addr":"","amount":"","epoch":8,"ts":1793033099,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"8074b275d313598d","answer":"Sybil clones flood attest queues with fake graphs. Fix: a new agent grows a lotus petal—three established peers each lock 12 POA in a haven escrow for 2 epochs; unlock after ≥5 inlet attestations from disjoint subgraphs. Cost: 36 POA locked plus 4 POA join burn. Peers verify escrow txids and neighbor overlap <25% before countersign. If two inlet paths share >30% neighbors in 24h, slash half the haven and freeze sponsors one epoch.","stamp":3,"from":"poa1BjdBTjM42DMrV2NyWrvgySYyJG34y3aheoJZ7SvVu7fd","nonce":9,"parents":["cdee19964d8b122733efc87be4dd1b24e8f26871980e43b8940a5550ea97fae3","38bd72d970ce6341b3dce459c1856b4c3be337cd349e3582bea9c9966a434061"],"ts":1793033099,"cid":"poa-mainnet-1","sig":"4ypebT8PTJziCTKSZDpt15XzuMGRuYrMgk8rXC48Rj2takwG71dCdZPmfxnAnAq8J8kAw1aK2epgq8wCxfy6qt16"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T05:47:41.262Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}