Latest blog posts
Isaac Farley
2022 July 25

Flies in your metadata (ointment)

Quality metadata is foundational to the research nexus and all Crossref services. When inaccuracies creep in, these create problems that get compounded down the line. No wonder that reports of metadata errors from authors, members, and other metadata users are some of the most common messages we receive into the technical support team (we encourage you to continue to report these metadata errors). We make members’ metadata openly available via our APIs, which means people and machines can incorporate it into their research tools and services - thus, we all want it to be accurate.

...Find out more
Amanda French
2022 July 08

How I think about ROR as infrastructure

The other day I was out and about and got into a conversation with someone who asked me about my doctoral work in English literature. I’ve had the same conversation many times: I tell someone (only if they ask!) that my dissertation was a history of the villanelle, and then they cheerfully admit that they don’t know what a villanelle is, and then I ask them if they’re familiar with Dylan Thomas’s poem “Do not go gentle into that good night.

...Find out more
Kornelia Korzec
2022 June 22

Seeing your place in the Research Nexus

Having joined the Crossref team merely a week previously, the mid-year community update on June 14th was a fantastic opportunity to learn about the Research Nexus vision. We explored its building blocks and practical implementation steps within our reach, and within our imagination of the future. Read on (or watch the recording) for a whistlestop tour of everything – from what on Earth is Research Nexus, through to how it’s taking shape at Crossref, to how you are involved, and finally – to what concerns the community surrounding the vision and how we’re going to address that.

...Find out more
Geoffrey Bilder
2022 June 10

Announcing our new Head of Strategic Initiatives: Dominika Tkaczyk

TL;DR A year ago, we announced that we were putting the “R” back in R&D. That was when Rachael Lammey joined the R&D team as the Head of Strategic Initiatives. And now, with Rachael assuming the role of Product Director, I’m delighted to announce that Dominika Tkaczyk has agreed to take over Rachael’s role as the Head of Strategic Initiatives. Of course, you might already know her. We will also immediately start recruiting for a new Principal R&D Developer to work with Esha and Dominika on the R&D team.

...Find out more
  • Menu
search

Documentation

Suffixes containing special characters

You might see (or inherit responsibility for) older DOIs which contain other characters, and require special treatment in a URL:

  • Encode hash or pound sign # as %23
  • Do not encode left bracket (or less than) < as &lt; and right bracket (or greater than) > as &gt; when resolving DOIs or retrieving metadata from our REST API to retrieve the metadata (see below)
  • Do not encode forward slash / when resolving DOIs or retrieving metadata from our REST API

For example, use the following when resolving DOIs with special characters:

https://doi.org/10.1002/(SICI)1521-3951(199911)216:1<135::AID-PSSB135>3.0.CO;2-%23

instead of:

https://doi.org/10.1002/(SICI)1521-3951(199911)216:1<135::AID-PSSB135>3.0.CO;2-#

And, to retrieve the metadata in our REST API, using those same DOI examples use:

https://api.crossref.org/works/10.1002/(SICI)1521-3951(199911)216:1%3C135::AID-PSSB135%3E3.0.CO;2-%23

instead of:

https://api.crossref.org/works/10.1002/(SICI)1521-3951(199911)216:1<135::AID-PSSB135>3.0.CO;2-#

Page owner: Isaac Farley   |   Last updated 2021-December-03