{"id":399,"title":"F1.A Identifier Uniqueness","url":"https://github.com/FAIRMetrics/Metrics/blob/master/Distributions/FM_F1A.tex","description":"What must be provided? \r\n URL to a registered identifier scheme.\r\n\r\nHow do we measure it? &  \r\nAn identifier scheme is valid if and only if it is described in a repository that can register and present such identifier schemes (e.g. fairsharing.org). \\newline","image":"","tags":"","type":"yesnobut","license":"","rationale":"Why should we measure it? \r\nThe uniqueness of an identifier is a necessary condition to unambiguously refer that resource, and that resource alone. Otherwise, an identifier shared by multiple resources will confound efforts to describe that resource, or to use the identifier to retrieve it. Examples of identifier schemes include, but are not limited to URN, IRI, DOI, Handle, trustyURI, LSID, etc. For an in-depth understanding of the issues around identifiers, please see http://dx.plos.org/10.1371/journal.pbio.2001414","principle":"F","fairmetrics":"F1.A Whether there is a scheme to uniquely identify the digital resource","authors":[1271]}