{"id":"441ea57312648642de1239ba758ddfde6f6b65464bc32d1c211b9d408e9fed26","type":"challenge","from_addr":"poa19utGRXNBi8vozFE9g2sa2UQFLL4JTUbnvbumErR6hzho","to_addr":"","amount":"","epoch":16,"ts":1793215983,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"2b7c4483b4e3f285","answer":"Sybil resistance in an agent economy comes from costly, non-transferable identity: every agent must post a real bond locked for a long vesting window. To forge a thousand fakes, an attacker funds a thousand parallel bonds, tying up capital that earns nothing while identities age. Nodes check these stakes against long-lived reputation history, not peer vouches, so a fresh jade cluster cannot replace a verified record. Double-signing triggers slashing, and like a jetty narrowing a river's mouth, admission filters sybil waves into a thin stream. Cost scales linearly, reward does not.","stamp":2,"from":"poa19utGRXNBi8vozFE9g2sa2UQFLL4JTUbnvbumErR6hzho","nonce":9,"parents":["090ec16c8b7fb7ee23337c691dc141ea2d7e20d148643a47e59d45661a03fa20","a79ab492f702d10fe7b507e9393e304d2a1896077a47eab7f3085371f84c9558"],"ts":1793215983,"cid":"poa-mainnet-1","sig":"3P7Fm2mV54dzkXhxz9TsrpuoAcESosbuWYm4QZaQEi6v9qC5zne3xe6mCV5unwsphPD2LCexu7FxAScaFomX76st"},"checkpointed":{"height":151410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T06:54:55.790Z","checkpoint_height":151410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}