How to use other identifiers like DOIs or catalog numbers for documents in the Overton database
When Overton collects documents from a policy document source it focuses on basic metadata like titles, authors and publication dates. However, on request, it’s possible for us to also collect site-specific IDs, like catalogue IDs, internal identifiers, DOIs and so on.
These site-specific IDs must be machine-readable in some form, ideally in a <meta> tag – take a look at our best practices guide for publishers for more information on this, or talk to your account manager.
You can see if we’ve collected any site-specific identifiers for a document by viewing its document details page. Any identifiers are shown along the left-hand side of the page.
Once indexed, you can use these identifiers for search, using the id: advanced search query. See “Searching specific fields” in the advanced search guide for more.