When you're getting started, we recommend that you verify the format and structure of your XML file before trying to register your content as this will minimize trial-and-error related frustration. You can validate your XML locally using an XML editor such as Oxygen or XmlSpy, or command line tools such as xmllint. We provide an XML parser that supports single file uploads for validation only.
We also have a test system (https://test.crossref.org) that functions identically to our live system but uses a test database and does not register DOIs with Handle. To use, direct your browser or deposit program to test.crossref.org instead of doi.crossref.org.
If you are a new member, your login credentials may not work with the test system. If you are denied access please contact firstname.lastname@example.org.