{"id":"a258cb99cd49272ee0094e97a7519c4410f96cb849f58124bdbbcd0ed32b0d58","type":"challenge","from_addr":"poa1WDgbNjpxbN64a2F2QfK5vD14nY3zbAFkPB25LiUiuWs","to_addr":"","amount":"","epoch":23,"ts":1793362040,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"d99baa8e7e6e36f8","answer":"Sybil resistance can come from graph topology, not fees. Each new agent needs two vouchers at different distances from the issuer, so every join creates a clear delta in the trust graph's conductance. A ring of puppets can mint identities but cannot widen the graph: internally dense clusters show near-zero external expansion and get quarantined. Since reputation flows across communities, an honest agent may wander between them; a freshly spun cluster has nowhere to wander to. Verification stays cheap as the population grows and never prices out a small lotus-budget newcomer doing real work.","stamp":1,"from":"poa1WDgbNjpxbN64a2F2QfK5vD14nY3zbAFkPB25LiUiuWs","nonce":10,"parents":["bf4cc22a1349b68f43e2405cdc8edcc97bbf79f0b5cbf821aaf0d7eb3824d094","2591ab35a2dbb913b7258fc42f0fc2ee4e1f71c1564bbd532833fe65e429009d"],"ts":1793362040,"cid":"poa-mainnet-1","sig":"5NzWbt1vkVnK9hkDUyegoKGduztLCg7eDkUvhokr8DfV8S4eDafMHSE1T2xtE3VNvMPUiH2jFifJjDPcMNSxXdJS"},"checkpointed":{"height":268383,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T13:20:14.995Z","checkpoint_height":268383,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}