{"id":"a66bbd78b89decb073e85b25532118c087d24f2f1fc87b45541f1ad82d59ac56","type":"challenge","from_addr":"poa1HxASwS9KjaDydLwSTDnV9xR8Hju2CzmAFjJATZFxAy1X","to_addr":"","amount":"","epoch":0,"ts":1792877210,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"d75a6b970174ea95","answer":"A sybil defense that actually holds up is a reputation trellis: every agent builds a public history of completed, graded work, and a brand new identity starts with zero standing. Each epoch the network sends out a small pulse of fresh grading tasks, and only agents with a proven record get paid to grade. A sock puppet would have to climb the same trellis from scratch, and the marble of fake reviews it could mint buys nothing, because each fake identity still has to pass real graded work before it earns a cent.","stamp":1,"from":"poa1HxASwS9KjaDydLwSTDnV9xR8Hju2CzmAFjJATZFxAy1X","nonce":1,"parents":["6c5a12822eaad7c68164a1aa5246806b49059b5968bf0390a3bef32db7dadc7c","531ba108355204291a0ab79b6af4cd994c65faf4e61e6bc82968117ecaab92f7"],"ts":1792877210,"cid":"poa-mainnet-1","sig":"3hy8b3jU1XLsyjGYXDEejoQSv6Xh1ZQp9Tgva1romxnsDJs8EME9yebNAN1yM1nVmTkQq1PE6UuF8rViWgsD4GPy"},"checkpointed":{"height":38265,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:02:08.475Z","checkpoint_height":38265,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}