​A huge influx of digital information brought on by the Big Data era requires research resources to be more accessible, reliable and easier to reuse. Persistent identifiers (PIDs) can help: they are are unique and persistent codes that are linked to a piece of digital information. Since PIDs are specifically connected to one object, they are extremely helpful when keeping track of a dataset and everything connected to it. In this way, PIDs help data to meet the FAIR principles: Findable, Accessible, Interoperable and Reusable. FAIR data is easier to discover and access, and can be integrated with other data to enable optimal reuse of that information. 

FREYA was a three-year project, coordinated by SCD and involving eleven other organisations active​​ in PIDs, that received funding by the European Commission under the Horizon 2020 research and innovation programme. It developed the supporting infrastructure for persistent identifiers (PIDs) as a core component of Open Science in Europe and globally. Building on the services of FREYA, researchers can better locate and evaluate data and make the scientific record more complete, reliable, ​and traceable. Moreover, when research is easier to find, it also becomes more likely to be cited or re-used, maximising the efficiency of the whole research process.

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FREYA's partners: STFC, CERN, Datacite, Pangaea, EMBL-EBI, British Library, DANS, ARDC, ORCiD, Crossref, Hindawi, PLOS.