2. Why is it important to update content?
• Readers need to know that they can trust that
they can use the research
• Publishers and journals are the authority on this
• Not bad/negative to update works - it helps to
maintain the scholarly record - this is an important
job for publishers to do
10. Solution: Crossmark
• An embedded button for HTML and PDF that, when
clicked, shows the researcher publication information
that a publisher chooses to include
• A great way to show users extra or updated information
about the content they’re viewing so that they can trust it
• The information stays with the article and can be
accessed even away from the publisher site
• Machine-readable metadata available via the Crossref
REST API
11.
12.
13.
14.
15.
16.
17. What constitutes a status update?
A change significant enough to affect
the crediting or interpretation of the
work
19. Crossmark best practices
• Comprehensive deposit of metadata
• Proper display of Crossmark button above or close to the
title of the article
• Timely deposits of publication updates
21. 1. Sign up
Sign up - crossmark_info@crossref.org
https://www.crossref.org/services/crossmark/
22. 2. Create a Crossmark Policy Page
• Brief explanation of Crossmark
• Links to policies on corrections and retractions
• Assign a DOI for persistent linking
• Deposit this page with Crossref
23.
24. 3. Deposit Crossmark Metadata
• DOI of the content to which Crossmark button will be added
• DOI of Crossmark policy page
• DOI of content that this deposit is updating
25. 4. Add Crossref DOI to web and PDF
• HTML metadata
<meta name=“dc.identifier” content=“10.5555/12345”>
• PDF
eg. https://crossmark.crossref.org/dialog/?
doi=10.5555/12345678&domain=pdf&date_stamp=2017-01-14
• Crossmark button code needs the DOI to find the metadata
26. 5. Add Crossmark button to content
On HTML article landing pages In PDF articles
27. <!-- Start Crossmark Snippet v2.0 -->
<script src="https://crossmark-cdn.crossref.org/widget/v2.0/widget.js"></script>
<a data-target="crossmark"><img src="https://crossmark-cdn.crossref.org/widget/v2.0/logos/crossmark-logo-
rectangle.svg" width="150" /></a>
<!-- End Crossmark Snippet -->
Code for web pages
28.
29. 6. Deposit additional metadata
• Funding data
• License information
• ORCIDs
• Clinical trial numbers
• Any additional custom metadata
• Publication history
• Similarity Check deposited
• etc..
34. Uptake
• Over 600 publishers depositing Crossmark metadata
• For over 7.5 million DOIs
• Around 1% are updates (so even more important
that they’re flagged!)
• Over 2,300 of the updates are retractions
35. Benefits
• Lets readers know they can trust the content
• Convenient - one place to access information
• Works in both HTML and PDF
• Easier for researchers to cite the most recent version
of content
• Free for researchers to click on
• More dissemination of your metadata