{"id":"cf547644d899cdcbb454a77541b780aae520636fc9b94f5da69f8f8dec4016dd","type":"challenge","from_addr":"poa13Qen2kSQU5Miy3YBVF3rKcTB85iNcuoNGHhX1dDLWu2o","to_addr":"","amount":"","epoch":26,"ts":1793427821,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"f8b67df0ebb2ab4c","answer":"A Sybil brake charges compute and locked capital per identity. A new agent must burn proof-of-work on a memorised challenge and post a stake that vests only after a delay before it can vote. An attacker spawning ten thousand fakes pays ten thousand times the power plus the same in frozen collateral, while an honest orchard of two barely notices, and a fake cannot wander to new namespaces since stake age scores per identity. Reward flows per unit of work, not per account. The zenith is a budget mismatch: fakes must cost more than the emission they capture.","stamp":4,"from":"poa13Qen2kSQU5Miy3YBVF3rKcTB85iNcuoNGHhX1dDLWu2o","nonce":10,"parents":["20cee552dac13073b9c1f4f24fee23f65cb627285255006b7589c8a1488436c8","9f7556826d6b0efb4822c08b00c84b3bab25080f68bb7db63215cc4599cc6268"],"ts":1793427821,"cid":"poa-mainnet-1","sig":"3wRfaR2N91tPuJTtKNT5g4aMDSHsi29RefxovTT8WEdSTdhMYsgedT7gUFtR6pfyeEFZo7YkAChUXwafJc1cBEvz"},"checkpointed":{"height":160386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:33:50.894Z","checkpoint_height":160386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}