Each OCI (Open Citation Identifier) has a simple structure: oci:<identifier>-<identifier>, where “oci:” is the identifier prefix, and is used to identify a citation as a first-class data entity - see https://doi.org/10.6084/m9.figshare.7127816.v2 for additional information. In each OCI, the first <identifier> is the identifier for the citing bibliographic resource, while the second <identifier> is the identifier for the cited bibliographic resource.

Prefix

oci

Links

Homepage

Contact

Missing Contact

Pattern for Local Unique Identifiers

Local identifiers in Open Citation Identifier should match this regular expression:
^0[1-9]+0[0-9]+-0[1-9]+0[0-9]+$

Example Local Unique Identifier

01027931310-01022252312   Resolve

Pattern for CURIES

Compact URIs (CURIEs) constructed from Open Citation Identifier should match this regular expression:
^oci:0[1-9]+0[0-9]+-0[1-9]+0[0-9]+$

Example CURIE

oci:01027931310-01022252312

The metaregistry provides mappings between the Bioregistry and other registries. There are 3 mappings to external registries for this resource with 1 unique external prefixes.

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier 01027931310-01022252312 is used to demonstrate the providers available for Open Citation Identifier. A guide for curating additional providers can be found here.