Crossmark is a solution that embeds a button in HTML and PDF documents to consistently show readers when publisher-chosen updates or additional information is available about an article. The Crossmark button links to a metadata page with information like corrections, retractions, or funding data. Over 600 publishers use Crossmark for over 7.5 million articles, with about 1% (over 2,300) featuring retraction updates. Crossmark helps maintain trust in scholarly works by informing readers of changes and ensures researchers can access and cite the most current version.
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
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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
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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
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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