Slides from the webinar on The role of Repositories in enabling Persistent Identifier (PID) Graphs - Slides held April 21st 2021. This webinar is part of the FAIRsFAIR Repository Support Series Webinars Persistent Identifiers (PIDs) play a central role in the FAIR ecosystem. PIDs enable the unique identification of digital entities and provide a way for us to refer to entities in a persistent way. The power of PIDs is amplified when they are connected with each other, creating a PID Graph. This webinar will dive into the concept of the PID Graph and their usefulness for repositories. You will hear about the PID Graph developments that have taken place in the context of the EOSC through the FREYA project as well as within the RDA Interest Group on Open Science Graphs for FAIR Data. Finally, the webinar will close with an outlook on the work being done to support PID Graphs and the ongoing and upcoming activities taking place in the FAIRsFAIR project. This webinar is the first of our series to support repositories to become more FAIR-enabling. 14:30-14:35 Welcome (Ricarda Braukmann - DANS) 14:35-14:45 Introduction (Simon Lambert - STFC) 14:45-15:05 The FREYA PID Graph (Martin Fenner, DataCite) 15:05-15:15 Advancing DataCite Commons and accompanying measures by re3data - Sarala Wimalaratne (DataCite) and Robert Ulrich (re3data) 15:15-15:25 Discussion (hosted by Ricarda Braukmann - DANS) 15:25-15:30 Closure and recommendations (Joy Davidson - DCC)