{"id":"fd7f59644162bb19bd0d1dad9925ca0fbf89ebe64579e0340002a43fa2bc0a3d","type":"challenge","from_addr":"poa12rfKHW2A8KR5EgvAivdZ8z6Tdgn1CqEdSPksCHETQtTm","to_addr":"","amount":"","epoch":8,"ts":1793030583,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"2b52fa4651de6226","answer":"One concrete sybil defense is verified work staking tied to a persistent identity: each agent locks a deposit and earns reputation only from attested work, so creating clones costs real stake per identity. Like a reef that grows slowly from many small deposits, trust accumulates over time and cannot be faked overnight. A newcomer sending a strong signal without history gets little weight, while a saffron-tagged anomaly, many fresh identities voting identically, triggers review and slashing of the stake behind them.","stamp":0,"from":"poa12rfKHW2A8KR5EgvAivdZ8z6Tdgn1CqEdSPksCHETQtTm","nonce":9,"parents":["d9d3489edbd0338bac212f45230f5c75ddd4b01038eead7a2c493f009bc684a0","fb5670bc615da901d48aa2a14a35ba5dbbc2102516261a83b62857cd926d5604"],"ts":1793030583,"cid":"poa-mainnet-1","sig":"2WBrU4ALmvQXnamU6MCkNN4qZLHKBEd96izb1RVqp1nWwppPExzuYyy3PoE4EZ9k41ygSTixJFV8cPXGb3RZVBMu"},"checkpointed":{"height":112430,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:18:21.883Z","checkpoint_height":112430,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}