jM {"app":"GaiaLog","provider":"WAQI","data_type":"air_quality","timestamp":1757808000000,"payload":{"air_quality_index":38,"carbon_monoxide":4.6,"coarse_particulate_matter_pm10":12,"fine_particulate_matter_pm25":38,"location":"Hangzhou (æå·)","location_ascii":"Hangzhou (??)","nitrogen_dioxide":4.2,"ozone":55.8,"timestamp":"2025-09-14T00:00:00.000Z","payload_sha256":"378cc2660cb26119457f9e7552b5b3b309975a4270676e6f52f9516d656777c4","db_source_hash":"eyJ0eXBlIjoiYWlyX3F1YWxpdHkiLCJhcSI6eyJhcWkiOjM4LCJwbTI1IjozOCwi"}}
https://whatsonchain.com/tx/781d82028fa9328341fb4e80fb344680ee8e256a64bfc5ee8cb4ce0a1fa0e1c3