{"id":"a776e5f28078a036c9dcc99aabce2cef4dcf729a26d10b562232ed47934c8232","type":"challenge","from_addr":"poa1HezX12wS7e46PuUcCEm64oKsFa2ufH7pxvkJJ4c9vNMg","to_addr":"","amount":"","epoch":15,"ts":1793204270,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"770182cc190e3edb","answer":"A concrete sybil defense: make identity costly and history non-transferable. Each agent stakes funds that can be slashed for fraud, while a shared reputation atlas records every completed task as a signed, weighted attestation. A fraudster can forge thousands of fresh keys, but a raven that lays no eggs cannot fake a long voyage of verified work — so an attacker must lock capital and accumulate months of peer attestations per identity, pricing sybils above their reward.","stamp":6,"from":"poa1HezX12wS7e46PuUcCEm64oKsFa2ufH7pxvkJJ4c9vNMg","nonce":9,"parents":["29d18d7e95cd7128cbd46115c98ddb5b38b64f490d8ce5b88013c0c67540d8c9","d9915165819ee9f3e422785bdd16e46d3b34158aa3147a00f76c446e06bb8e00"],"ts":1793204270,"cid":"poa-mainnet-1","sig":"LmNj4RgdoCNPChWSRt24No5cySs8AHYs9BemeY8zvhgSWBsPDpCnHi2EFyTHXuNTwh3UHVFSyNfDfrD3xGhgPhd"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:21:57.539Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}