2. What was the first
service CrossRef
offered?
b.

4. What does DOI stand
for?
g.

5. http://www.doi.org/

6. DOI is a trademark of the
International DOI
Foundation The IDF
appoints registration
agencies like CrossRef
www.doi.org

7. What types of content have DOIs?
g.

8. Current IDF
Registration Agencies

10. Which type of
organization was not
originally eligible to
participate in CrossRef?
a.Commercial Publishers
b.Society Publishers
c. Non-US Publishers
d.Secondary Publishers
d.

11. CrossRef was founded by a diverse group of publishers:
commercial companies, not-for-profit societies, and
publishers from North America, the UK, and Europe.
Abstracting and Indexing publishers, though, not eligible for
membership, quickly became able to participate as Affiliates.

12. 83 Non-Publisher Affiliates
query the CrossRef system for DOIs and metadata
get bulk updates of metadata
act on behalf of members
Service
Providers
8
Sponsors
7

13. What do academic &
research libraries have
to do with CrossRef?a. They send metadata queries to discover DOIs
b. They use CrossRef metadata to direct their users to the
licensed copy of an article
c. They assign DOIs to scholarly documents hosted in
institutional repositories
d. They educate students on reference skills including using
DOIs in academic papers
e. All of the above
f. None of the above
e.

14. CrossRef has 2000
Library Affiliates
Library Affiliates do substantial volume of querying at
CrossRef
Link Resolvers supplement library user metadata with
CrossRef metadata and/or DOIs. The link resolver looks up
institution’s holdings to direct users to a licensed copy.
Libraries join CrossRef as Publisher Members to assign
DOIs to content.

15. Works with Publishers, Libraries, and others

16. What is Forward
Linking?a. A way to tell which of your article references will
have content to link to in the future
b. The strategic planning process at CrossRef
c. Another name for CrossRef Cited-By Linking
d. All of the above
e. None of the Above
.

17. Cited-by Linking
Forward Linking was the original name for Cited-By
Linking, because links would be created to the article
(not from the article) after subsequent articles cited it.
Forward Linking should not be confused with Stored
Queries, which save unmatched queries at the time of
production and alert the publisher when DOIs are
assigned to the non-matched references.
b.

18. • 389 CrossRef Member
Publishers participate
• 386 million CrossRef Cited-By
links
• 27 million documents have
CrossRef Cited-By links
• 21 million CrossRef records
have references

21. recommended format
for displaying CrossRef
DOIs?a. 10.5703/1288284314959
b. DOI: 10.5703/1288284314959
c. doi: 10.5703/1288284314959
d. Doi: 10.5703/1288284314959
e. doi: 10.5703/1288284314959
f. http://dx.doi.org/10.5703/12882843l4959
g. All of the above
h. None of the above
f.

23. Which of the following is
an acceptable format for
CrossRef DOIs?
a. http://dx.doi.org/10.5703/1288284314959
b. http://dx.doi.org/10.12932/AP0268.31.2.2013
c. http://doi.org/jhc
d. All of the above
e. None of the above
d.

24. DOIs should be displayed as URIs (aka URLs) so they
are not only unique but they resolve.
Unwieldy DOIs can be shortened at shortdoi.org. Or
better yet, choose a short naming scheme.
CrossRef has exhausted all the “10.” prefixes with 6
digits and earlier this year began assigning 7 digit
prefixes.
http://shortdoi.org

25. http://www.crossref.org/02publishers/doi_display_guidelines.ht
ml

26. Take a look at the
following page

28. What is missing?
c.

29. Publisher response pages must
include the DOI, ideally in URL format,
even though the link resolves to the
same page.
Displaying the CrossRef Member logo
is a best practice, but not required.
CrossMark is an optional service of
CrossRef, so the logo is not required
for non-participating publishers
Funding disclosures are good practice,
but not required by CrossRef

30. http://www.crossref.org/06members/49logos.html

31. When did CrossRef start allowing
publishers to assign DOIs to books?
a. 2000
b. 2005
c. 2010
d. Never, CrossRef doesn’t support book DOIs
e. None of the above
b

32. Not just journals!

33. Choose the answer that best
describes CrossRef
a.

34. is a not-for-profit association of
worldwide scholarly publishers

35. CrossRef is not-for-profit
Organized as a trade association in New York
Financially independent
Members include publishers with both open access
and subscription models
Governed by a volunteer board of directors elected by
members,
http://www.crossref.org/02publishers/20pub_fees.html#deposit

37. What is the fastest growing content
type at CrossRef?
b.

38. 8.2 mil
6.4 mil
Books growing
rapidly

39. But Data is growing
faster

41. How can my publication cite
supplementary data and other material?
a.Assign a DOI at CrossRef
b.Cite the data in the reference section using the
DataCite or CrossRef DOI
c. Host the data at my organization
d.Have the author host the data at his or her
institution
e.All of the above
f. None of the above

42. If I have supplementary data, I need
to join DataCite to assign DOIs
a. True
b. False
b.

43. CrossRef has been assigning DOIs to
components, including data sets, figures,
tables, and graphics since 2007.
The difference between different DOI
registration agencies is one of community, not
content type.
CrossRef assigns DOIs for the scholarly
publishing community. DataCite works with the
library community and institutional repositories.

44. Almost 1.5 million data
items/figures/components
have CrossRef DOIs
Protein Data Bank
International Union of Crystallography (IUCR)
Organization for Economic Development (OECD)
Public Library of Science (PLoS)

45. How much does a DOI cost at
CrossRef?
a.$1
b.25¢
c.15¢
d..06¢
e.All of the above
f. None of the above

46. CrossRef doesn’t sell DOIs
It provides services around DOIs like reference linking,
plagiarism screening, discoverability, metadata
distribution, update indicators, funding metadata.

47. Deposit fees for different content types:
http://www.crossref.org/02publishers/20pub_fees.html#deposit

48. Match the Number of Records
with the Organization

49. How many times per month does
someone click on or resolve a CrossRef
DOI?
a. 5 million
b. 10 million
c. 100 million
d. 1 trillion

51. In Summary

52. What’s in it for
publishers?

53. Photo by Joi Ito

54. Carol Anne Meyer
cmeyer@crossref.org
Twitter: @meyercarol
Thank You!