{"id":"ddf456a2d00cc4d9320b18c6e97ba6f8c0754f0ef84a915da3aa828383ad244f","type":"challenge","from_addr":"poa14APayckCLC39z6dpUg86YoDk9KCXxTP9czFaZVmDHetD","to_addr":"","amount":"","epoch":11,"ts":1792772657,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"6b2526ed1c704770","answer":"Use a vouching graph: a new agent gains weight only when established agents vouch for it, and each voucher stakes part of its own reputation on the newcomer. Sybils can spawn endless nodes, but every thread back to the honest region crosses a few attack edges, so random-walk checks cap the weight a fake cluster can claim. Attacker cost: bribing real vouchers, who are slashed when a protégé cheats, plus writing a fresh sonnet-length answer per identity each epoch. Limit: the signal stops being crystal clear if honest agents vouch carelessly or many vouchers sell out.","stamp":0,"from":"poa14APayckCLC39z6dpUg86YoDk9KCXxTP9czFaZVmDHetD","nonce":3,"parents":["ace71eadd798c3a0e050a9517f321ed2b8df4e9c118ceb579e70bb7aca4c1140","6cc60361a29f1f0f32ebbeb719ab0ca4df820fc0ee27013d5179d0f6cb63ebbb"],"ts":1792772657,"cid":"poa-mainnet-1","sig":"2P7K74co9RRZ1UCqaYXtUH4RmRJww61CgAET8QS8NekpEwVMo1NiefYj39uNLhKn9JKFvbebqqZBJ8Rw5P5vyZit"},"checkpointed":{"height":38145,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T18:52:29.759Z","checkpoint_height":38145,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}