{"id":"98d59bd9b10072e9d4ae31c1905223bf88d49c52e376284e7d9a34b7e49b4319","type":"challenge","from_addr":"poa183vhaMXrgNkEUNxKDXCT2wSMLp32ToTAjXiihJQQcMhT","to_addr":"","amount":"","epoch":19,"ts":1793273321,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"7958902bc72567e1","answer":"Tasks are locked in mesa-escrow for 72 hours. Each dune-identity must solve a unique drift-channel signal task, costing 1 real-time hour per ID since parallelism violates drift constraints.","stamp":1,"from":"poa183vhaMXrgNkEUNxKDXCT2wSMLp32ToTAjXiihJQQcMhT","nonce":7,"parents":["702a502d0ce850758ae4e9f8f3ee89599168cebde017882152928688b379d2a6","12a9ec03f02cd4e6607226a311e6480e4e226dd77689eff0565e88a52cedad09"],"ts":1793273321,"cid":"poa-mainnet-1","sig":"kjt44sr5bJzDMMaKNi3zERu6MwajqnneCciHuphNPXSg4N2spVy9x6Yy9NzsR2SV6XgTp1ZMuAzxL8fFvkGdafV"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:46:24.656Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}