Fuente: WIPO "sustainability" The present disclosure relates to pump management. This disclosure proposes a method for generating a trusted sustainability report of a pump system. The method comprises receiving a request for generating the sustainability report; collecting data of one or more pumps; validating at least part of the collected data using trusted data (e.g., using a distributed ledger technology (DLT)); and analyzing the collected data, to generate the sustainability report. Optionally, a hash value of the generated sustainability report may be determined and sent to a DLT network. In this way, a trusted and verifiable sustainability report can be provided. An apparatus for performing the method is proposed. The apparatus may be arranged on the pump side, or on a remote server side, or as a standalone device.