The document elaborates on the various components of metadata utilized by CrossRef, including basic bibliographic references, abstracts, and linked clinical trials, which collectively enhance discoverability and research facilitation. It outlines the optional features like CrossMark and licensing, which contribute to enriching metadata and enabling better user experiences. Additionally, it touches upon the importance of crawler support and text & data mining resources for accessing content effectively.

2. Metadata
what is it?
Chuck Koscher
Director of Technology

3. its made up of many parts
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4. Basic
Bibliographic
(mandatory) References
(highly encouraged)
Abstracts
(optional)
Crossmark
(optional)
Programs
(optional)
Funding data
Linked clinical trials
Licensing
Relations
Resources
Multiple Resolution
Text & Data Mining
Crawler support
• Together they form a very rich set of metadata that enables
a diverse community to implement many tools and services
• Individually they support specific Crossref features

5. Basic
Bibliographic
(mandatory)

6. what this publisher did
what would have better

7. Basic
Bibliographic
(mandatory)
Supports discoverability

8. References
(highly encouraged)

9. References
(highly encouraged) Three ways to include a reference in your XML
3) As text reference
<citation key="2697_CR10">
<unstructured_citation>British Standard. Chemical methods- Extraction of
trace elements soluble in aqua-regia. BS 7755-3.9: 1995 ISO 11466
1995</unstructured_citation>
</citation>
1) As a metadata query
<citation key="459_CR8">
<journal_title>Mon Weather Rev</journal_title>
<author>GJ Holland</author>
<volume>108</volume>
<first_page>1212</first_page>
<cYear>1980</cYear>
</citation>
2) As a DOI
<citation key="ref10">
<doi>10.1037/13484-000</doi>
</citation>

10. References
(highly encouraged)
• Increases traffic to your content
• Builds a better experience for your readers
• Enables citation research and analysis

11. Abstracts
(optional) Enriches your metadata

12. Crossmark
(optional)
10.1107/S0907444906030915
Inform your readers

13. 10.1107/S0907444906030915

14. Crossmark
(optional)
Inform your metadata consumers

15. Programs are a way to
segment Crossref metadata.
It’s a techie / geek thing
`
Programs
(optional)

16. Funding data
(optional) Identify the research resulting
from specific funding

17. Linked clinical trials
(optional) Enriches your metadata

18. Linked clinical trials
(optional)
Uniform Trial Number
ClinicalTrials.gov
ISRCTN.org
Australian New Zealand Clinical Trials Registry
German Clinical Trials Register
Chinese Clinical Trial Registry
Brazilian Clinical Trials Registry
Netherlands National Trial Register
Clinical Trials Registry India
UMIN Japan
Pan African Clinical Trial Registry
Sri Lanka Clinical Trials Registry
Japan Medical Association Clinical Trial Registry
Iranian Registry of Clinical Trials
Clinical Research Information Service, Republic of Korea
Cuban Public Registry of Clinical Trials
EU Clinical Trials Register
Japan Primary Registries Network
Thai Clinical Trials Registry
10.18810/registries

19. Licensing
(optional) Publicize your terms & conditions

20. Licensing
(optional) Publicize your terms of use

21. Licensing
(optional) http://www.niso.org/workrooms/ali/

22. Connect to other content
Relations
(Optional)
After lunch

23. Host content in more than one place
After lunch
Multiple Resolution
(optional)

24. Help the machines use your contentText & Data Mining
(optional)
Crawler support
(optional) 1
2
3
4

25. <resource>http://link.springer.com/10.1245/s10434-016-5211-6</resource>1
The normal landing page for the article, the place where people go.

26. <collection property="crawler-based" setbyID="springer">
<item crawler="iParadigms">
<resource mime_type="application/pdf">
http://link.springer.com/content/pdf/10.1245/s10434-016-5211-6.pdf
</resource>
</item>
2
Property=crawler : Tells us this is a link for machines which are crawling content
Crawler= iParadigms : Tells us this link is specifically for Crossref’s Similarity Checking vendor
mime_type = PDF : Tells the crawler what to expect at this link

27. 3
Property=text-mining : Tells us this is a link for machines text mining
mime_type = PDF : Informs the miner this is PDF
mime_type = PDF : Informs the miner this is HTML
<collection property="text-mining" setbyID="springer">
<item>
<resource mime_type="application/pdf”>
http://link.springer.com/content/pdf/10.1245/s10434-016-5211-6.pdf
</resource>
</item>
<item>
<resource mime_type="text/html”>
http://link.springer.com/article/10.1245/s10434-016-5211-6/fulltext.html
</resource>
</item>
</collection>
4
NOTE! : Access controls may be imposed by the publisher, these
links are not guaranteed to reach the content

28. Posted Content (aka preprints)
`

29. Published
Published versus Posted *
Mostly stuff that has an ISSN or ISBN where content
items are grouped into publications
Two models to present content on-line
Posted
Mostly stuff that has been accepted for posting to a
platform or site that might organize postings into
topics or subject groupings
(* but we’re not making a judgment about quality or value, we just need a way to organize stuff)

30. One type of posted-content : preprint
Specialized treatment, using relations,
to notify the post-content host that a
Version of Record has been published.
http://blog.crossref.org/2016/05/members-will-soon-be-able-to-assign-crossref-dois-to-preprints.html

33. Email notifies a VoR has been published
Crossref has registered Version Of Record DOI for preprint: 10.50505/preprint_sample_doi_1

34. Thank you
Crossref.org
ckoscher@crossref.org
@ckoscher