PMC International (PMCI) is a free full-text archive of biomedical and life sciences journal literature. PMCI is a collaborative effort between the U.S. National Institutes of Health and the National Library of Medicine, the publishers whose journal content makes up the PMC archive, and organizations in other countries that share NIH's and NLM's interest in archiving life sciences literature.

Comment

Note that the Europe PMC instance redirects canonical local unique identifiers from https://europepmc.org/articles/PMC3084216 to https://europepmc.org/article/PMC/3084216. However, this is an implementation detail and does not reflect the official format of a PMC identifier, which indeed does include PMC at the beginning of the local unique identifier

Prefix
pmc
Alternative Prefixes
PMCID PMC
Keywords
bibliography centrally registered identifier knowledge and information systems
Links
Homepage
Contact
Jeff Beck   0000-0002-1798-9797   jeffbeckncbi
Pattern for Local Unique Identifiers

Local identifiers in PubMed Central should match this regular expression:
^PMC\d+(\.\d+)?$

Example Local Unique Identifiers
PMC3084216   Resolve
PMC7418728   Resolve
PMC7418728.1   Resolve
PMC7418728.2   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from PubMed Central should match this regular expression:
^pmc:PMC\d+(\.\d+)?$

Example CURIEs
pmc:PMC3084216
pmc:PMC7418728
pmc:PMC7418728.1
pmc:PMC7418728.2
Publications
References
GitHub Issue https://github.com/biopragmatics/bioregistry/issues/965
Ontology
Metaregistry PubMed Central

The metaregistry provides mappings between the Bioregistry and other registries. There are 9 mappings to external registries for this resource with 4 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext PMCID
Biolink Biolink Model Registry logo biolink PMC
Cellosaurus Cellosaurus Registry logo cellosaurus PMCID
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.2b4316
GO Gene Ontology Registry logo go PMCID
Identifiers.org Identifiers.org logo miriam pmc
N2T Name-to-Thing logo n2t pmc
Prefix Commons Prefix Commons logo prefixcommons pmc
Wikidata Wikidata Property logo wikidata P932
Providers

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 PMC3084216 is used to demonstrate the providers available for PubMed Central. A guide for curating additional providers can be found here.

Name Metaprefix URI
PubMed Central pmc http://europepmc.org/articles/PMC3084216
Bioregistry bioregistry https://bioregistry.io/pmc:PMC3084216
Identifiers.org miriam https://identifiers.org/pmc:PMC3084216
Name-to-Thing n2t https://n2t.net/pmc:PMC3084216
Extra Providers

Additional providers curated in the Bioregistry are listed here. These are typically inherited from Identifiers.org or Prefix Commons, and need extra curation.

Code Name URL
bio2rdf Bio2RDF http://bio2rdf.org/pmc:PMC3084216
ncbi.pmc PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084216