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Identifiers used in HAL

An identifier is a unique and long-term reference to an entity. A persistent identifier (PID) points in a reliable way towards a digital resource. HAL uses numerous identifiers, some of which are aligned with other repositories. All of them facilitate and guarantee the interoperability of HAL according to the FAIR principles.

Document identifiers

They are available in the deposit form. Add only the identifier and not the full URL address. For example, for the DOI, enter 10.1002/cpa.21496 and not

Main identifiers used to extract metadata to complete the deposit form

The metadata Identifiers will be completed.

  • DOI
  • arXiv
  • PubMed (PMID)
  • PubMedCentral (PMCID)
  • SWHID: to be used if the software code is already archived in Software Heritage.
  • PPN (Sudoc)
  • arXiv
  • Bibcode ADS
  • BioRxiv
  • CERN
  • ChemRxiv
  • DOI
  • MedRxiv
  • PubMed
  • PubMed Central
  • DOI:  identifier provided by the repository where the research data is archived. Not to be confused with the DOI identifying the publication.

Author identifiers

Author identifiers can be added either by the authors themselves when creating their idHAL, or by a portal administrator in AuréHAL. The CCSD, in partnership with ABES, carries out regularly enrichment and alignment campaigns.

Identifiers for organisations

Research structure identifiers for author affiliations are added only in AuréHAL, either by a portal administrator or by enrichment operations carried out by the CCSD.

  • idRef 
  • ISNI
  • RNSR: national registry for research structures
  • ROR: Research organization registry

Funding identifiers

The identifiers of ANR and European projects are managed in AuréHAL by the CCSD. Users can add a new project in the deposit form: it is recommended to check beforehand that the project is not already referenced in HAL.

Other identifier

  • issn : international serial standard number, only used in HAL for journals. Journals are managed in AuréHAL and the issn enables data to be linked with Sherpa/Romeo for self-archiving policies. A title of a book collection or an academic blog on Hypotheses should not be added as a journal title because it has an issn.

June 2023