How should I format my DOIs?

While some publishers require the full URL to the DOI, citation style guides and some of the modules we use prefer just the number. One of our sites came up with the following approach, that meets both requirements.

  • In the DOI field <identifier type="DOI">, enter the DOI number - not the URL.
  • In the URI field < identifier type="URI">, enter the full URL to the DOI.

This approach works well for several reasons:

  • The citation looks cleaner, and fits the style rules
  • Most Islandora Badges require the DOI only, without the full URI
  • Crossref specifically forbids preceding the DOI URL with “doi:” - which is what the citation does

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