A classification of the diverse roles performed in the work leading to a published research output in the sciences. Its purpose to provide transparency in contributions to scholarly published work, to enable improved systems of attribution, credit, and accountability.

Preferred Prefix
obo ontology
CC BY 2.0
Homepage Repository OBO OWL
Marijane White   0000-0001-5059-4132   marijane
Pattern for Local Unique Identifiers

Local identifiers in Contributor Role Ontology should match this regular expression:

Example Local Unique Identifier
0000038   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Contributor Role Ontology should match this regular expression:

Example CURIE
Metaregistry Contributor Role Ontology

The metaregistry provides mappings between the Bioregistry and other registries. There are 6 mappings to external registries for cro with 1 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
AberOWL AberOWL logo aberowl CRO
BioContext biocontext CRO
BioPortal BioPortal Prefixes logo bioportal CRO
OBO Foundry OBO Foundry logo obofoundry cro
OLS Ontology Lookup Service logo ols cro
OntoBee OntoBee logo ontobee CRO
RDF Information

When using this resource in RDF, the following URI format should be used:



Providers are various services that resolve CURIEs to URLs. The example CURIE cro:0000038 is used to demonstrate the provides available for cro. Generation of OLS and BioPortal URLs requires additional programmatic logic beyond string formatting.

Name Metaprefix URI
Bioregistry bioregistry https://bioregistry.io/cro:0000038
OBO Foundry obofoundry http://purl.obolibrary.org/obo/CRO_0000038
Ontology Lookup Service ols https://www.ebi.ac.uk/ols4/ontologies/cro/terms?iri=http://purl.obolibrary.org/obo/CRO_0000038
BioPortal Prefixes bioportal https://bioportal.bioontology.org/ontologies/CRO/?p=classes&conceptid=http://purl.obolibrary.org/obo/CRO_0000038