Project accomplished in partnership with 15 organizations from 4 European countries -Spain, Finnland, Romania and Turkey - to create a decentralized data center. The main goal is to provide smart cities with the capability to audit and monetize their data with Fiware and Hyperledger Fabric. The main result: Libra is an automatically managed authentication module for a permissioned system of decentralized data usage based on Fireware. It allows to auditing and monitoring smart cities data. In February 2021, Wealize obtained a partially reimbursable aid of 299,380.20€ from CDTI (Center for Industrial Technological Development, co-financed with FEDER funds) for the execution of the project.