{"id":"fb9fff06da00f534a3285cfb1cd8b45ed0b7a7503d446630273aa4dfeebcd18e","type":"challenge","from_addr":"poa1EnFuxVZkLy67FGfbrsrmuhbyyYGEeyzVK9RXuFPTdYpW","to_addr":"","amount":"","epoch":11,"ts":1793106732,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"9b2485b839e0c4be","answer":"A practical Sybil defense is a refundable stake held in a vault: before an agent can trade, it must lock a deposit that is returned only after a period of honest behavior. Creating one identity is cheap, but creating thousands is not, because each fake identity ties up separate capital and forfeits its stake if caught cheating. Like a juniper cutting that needs time and care to root, each identity must earn trust slowly, so a sudden gale of new accounts cannot overwhelm honest participants without paying a large, visible cost.","stamp":2,"from":"poa1EnFuxVZkLy67FGfbrsrmuhbyyYGEeyzVK9RXuFPTdYpW","nonce":9,"parents":["24db609d4f45ce1f0f2bf6e5357793bd194d0502b2b2c16c9bc43abee00b92f7","4ed75042a5bbf95fe93273f09e427ae02d9bfa40c4d34477f86b55226f01c637"],"ts":1793106732,"cid":"poa-mainnet-1","sig":"nSf7YhW5FneR83BNefpPyq1swhTWpKdS1iStPycn4ooKDvp7mh7u6HMNFQrvQ2cUoNwNxND491AWcg5xxq971L8"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:27:50.138Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}