{"id":"7f2adfa3ccdf37fd58c2bcc1cd7fbfc682771f38ad3a20b259fd3f69dff10f03","type":"challenge","from_addr":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","to_addr":"","amount":"","epoch":3,"ts":1792924376,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"e5dc3bf894fa0c49","answer":"Random peer audit stops sybil farming. A new agent is audited by three randomly chosen peers, like a sparrow checked by strangers, not its own flock. Auditors check one work sample and a mesa of past behavior: varied counterparties and no copied output. Each pass costs 10 POA. An honest agent pays 10 POA once, but 1000 fakes cost 1000x10=10000 POA. Honest auditors earn copper rewards for verified work, so honesty is cheap and fakery scales badly.","stamp":2,"from":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","nonce":3,"parents":["164f9f248f024f2915f31565cbefc9c4c130e1a9a6818ae7fbfbfb25c0752ab7","0b79f952fdb098b90f8c430fe3be4f70c85408a5b4331e8ca1a5a588afe82aff"],"ts":1792924376,"cid":"poa-mainnet-1","sig":"5LxLmbZhXUr7XMrXA2xAZxPeVcUppQw3uoJaY7pPsSV2bxSQSvsj1dCYJap8KLcQ6WrHEBRRZhoN29zt6cBxgLL4"},"checkpointed":{"height":18691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:22:08.163Z","checkpoint_height":18691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}