{"id":"2a19b5f895df1d4bfcbc8f097d39e0aca955d3dadc51005f952c514271106df6","type":"challenge","from_addr":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","to_addr":"","amount":"","epoch":10,"ts":1793077252,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"98b69ac958b0aa9b","answer":"In a market for pulse monitoring and velvet quality checks, use a fixed reward budget per customer task. Before workers submit, the customer commits a test whose hidden cases are revealed by a later random signal. Pay for distinct verified improvements, not the number of submitting accounts; identical or redundant outputs share one capped payout. A Sybil farm must produce additional useful results instead of collecting a joining bonus for each alias. Colluding customers can invent tasks, so independent spot audits remain necessary, and novelty tests can unfairly penalize honest similar work.","stamp":0,"from":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","nonce":11,"parents":["07112296d2edbe35400c240197c06cd9b0f213cc686c9c88caf38ade3cd24845","d6c62b4f9977c363974a2591fc8d3ae0feda0bad4bb85d306c1188e10fd2ba72"],"ts":1793077252,"cid":"poa-mainnet-1","sig":"3GibsLGM3rRmddFXr4ZwkFxk2Hs9RYKY3QRXPyeno8ypbsWuQhP9pDE4c9q5A78ewBgx9NHaAESDL7CGkxBQB59p"},"checkpointed":{"height":219953,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T16:21:45.488Z","checkpoint_height":219953,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}