The document summarizes several pilots conducted in Barcelona to collect community data and empower citizens with data. It discusses the DDDC pilot which aggregated demographic data from the Data Commons Manifesto participatory process. It also discusses an IoT pilot that collected urban environmental data through participatory sensing over 3 months. Finally, it discusses the BCNnow pilot that integrated open data and the data commons to create personalized dashboards for citizens to explore urban data. The overall goal is to create a technopolitical ecosystem in Barcelona called DECODE.