This test assesses whether the data uses a valid persistent identifier that support one of the following schemes: ark, arXiv, BioProject, BioSample, DOI, Ensembl, Genome, GND, Handle, LSID, PMID, PMCID, PURL, RefSeq, SRA, UniProt, URN, Identifiers.org, and W3ID. It checks whether the data is included as one of the metadata elements. It checks whether the data is included as one of the metadata elements.
Source: Since FAIROS uses [F-UJI](https://f-uji.net) to assess a Research Object, this test is an instance of the test **FsF-F1-02MD-5**. You can find more information in the european project FAIR IMPACT(https://fair-impact.eu/metrics-data)