Globally unique identifier


Provide an URL to a registered scheme that defines the globally-unique structure of the identifier(s) for your digital resource. Examples of identifier schemes include, but are not limited to URN, IRI, DOI, Handle, trustyURI, LSID, etc. Use the DOI for the identifier scheme specified in the FAIRSharing Registry (see

Principle: F

Rationale: The 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.


View Assessments

Associated Rubrics (5)

FAIR metrics by


A set of metrics to assess the FAIRness of digital resources. Based on work published in https://www...

fair metrics universal core metrics all digital objects

NIH Common Fund Data Ecosystem (CFDE) FAIR Rubric

A rubric for evaluating the FAIRness of NIH-CFDE Resources


FairmetricsPlus: Veracity


Fairmetrics with additional metrics to evaluate trustworthiness or veracity of a particular source. ...

truth confidence score

NIH Common Fund Data Ecosystem: LINCS (CFDE-LINCS) FAIR Rubric

A rubric for evaluating the FAIRness of LINCS Resource




Pubchem CDD