CrossRef DOIs in Use

CrossRef Cited-by Links Help Researchers Discover Relevant Content

A growing number of CrossRef members (160) participate in Cited-by Linking. These members deposit metadata for their references and display links to articles that cite their own content. And they pay no additional fees.

• 6,701,622 articles have references deposited.
• 97,506,209 Cited-by links exist.
• 14,073,761 (about 40% of all items in CrossRef) have at least one Cited-by link that could be displayed.
  

A useful example displays the complete citation information for citing articles adjacent to the article header. See this article from JCI: Journal of Clinical Investigation, published by The American Society for Clinical Investigation at http://dx.doi.org/10.1172/JCI27280.

An example from The European Journal of Human Genetics from Nature Publishing Group shows a link to Cited-by articles on the right of the article header. This article,
http://dx.doi.org/10.1038/sj.ejhg.5200979, shows 22 citing articles (as of July 2009) through
CrossRef.

An extensive set of CrossRef Cited-by links appear in this article from Wiley’s journal Aging Cell. Click on “Citation Tracking” above the abstract of the article - http://dx.doi.org/10.1046/j.1474-9728.2003.00057.x - to see them.

Find out how you can display CrossRef Cited-by links to your articles.

"Trust" Subject of CrossRef's 10th Annual Meeting

Distinguished guest speakers Onora O'Neill and T. Scott Plutchak will explore themes of trust, communication and plagiarism in academia and academic publishing at CrossRef's 10th Annual Meeting on November 10, 2009 in Cambridge, MA. Also join us on November 9 at Boston's Museum of Science for a dinner to celebrate ten years of publisher collaboration. Get the details and register now.

System Rewrite Planned

Plans for a rewrite of the CrossRef system call first for developing a new query system and then rewriting the deposit system. A draft specification developed by Atypon is under review, with development slated to begin in September. Our deployment target is late first quarter 2010.

CrossRef will have a co-development role in the project. We will have full access to all source code, which will give us a better understanding of the operational details and an improved ability to respond directly to issues.

Backward compatibility will be available to a high degree. In some cases though, in order to achieve the benefits of the new system we will not be longer be able to support legacy practices. In particular, we will discontinue support for all older deposit schema versions. We have advised the Technical Working Group (TWG) that as of October 1, 2009 the only deposit schema we will accept will be the current version. Check the CrossRef Help System for more information about our deposit schemas.

Strategic Initiatives Move Ahead

CrossMark and Contributor ID priorities were reaffirmed by the CrossRef Board at its recent strategic meeting. We will also pursue the strategic development of our DOI-based linking platform through these initiatives:

• Encourage researchers to use CrossRef DOIs in citing literature.
• Expand the CrossRef citation infrastructure to handle complex content types
  (e.g. versioned, hierarchical, dynamic).
• Encourage the use of CrossRef DOIs as preferred identifiers for automated
  processes (e.g. semantic web applications and data mining).
• Extend the use of CrossRef DOIs in emerging scholarly communication vehicles
  (e.g. semantically-enhanced articles, videos, blogs, and wikis).
  

Publishers Screen Thousands of Documents for Plagiarism

CrossCheck members checked several thousand documents for originality in both May and June using the plagiarism screening system powered by iThenticate. Participants may now use integrated access to CrossCheck from these manuscript tracking systems: eJournalPress, BenchPress and Editorial Manager (PDF). Scholar One Manuscripts has also announced their intention to integrate the feature.

Submissions to 56 current members can be compared to over 21 million items in the CrossCheck database from 27,000 titles (MS Excel file). Register for a complementary introductory online demo and webinar to find out how plagiarism screening can benefit your publishing program.

CrossRef Encourages Book Deposits and Reference Linking

Books continue to be the fastest growing content type at CrossRef. To encourage more publishers to deposit book metadata and link to books from within their references, CrossRef has finalized and publicized its Best Practices guidelines.

A news release announcing the guidelines also explains the difference between CrossRef DOIs for reference linking and emerging DOIs for other applications that will be assigned by Registration Agencies other than CrossRef.

Find out more about depositing books and adding books to your reference links.

IDF Open Meeting Theme is Ensuring Persistence

This year's International DOI Foundation (IDF) Open Meeting will focus on continuity, guaranteeing access, and providing a supportable funding model. The meeting is on October 7, 2009 at the University of California, San Francisco. View the preliminary agenda and register on the IDF site. View the preliminary agenda and register on the IDF site.

Frankfurt - Where it All Began

CrossRef was founded after a meeting of publishers at the Frankfurt Book Fair in 1999. Celebrate our anniversary with us at a cocktail party in the Digital Market Place (in the passage between corridor G and K) on Wednesday, October 14 at 5:00 PM or 17:00 local time. Ed Pentz and Kirsty Meddings will be available for meetings at Stand 4.2-J435 during the fair. Please contact Susan Collins to set up an appointment.

Outbound Reference Linking Required

Avoid Non-Linking Fees

Outbound reference linking, or linking from references to content from other CrossRef members, is one of the requirements of CrossRef membership. In September we will send invoices for the non-linking fee, which is 22 cents per deposited record, to any CrossRef publisher who has been a member for longer than 18 months and does not currently have outbound reference links. Find out more about the non-linking fee. If you any questions about the non-linking fee, please contact Anna Tolwinska, Assistant Marketing Manager.

Paying Invoices

Second quarter deposit invoices have been mailed. We accept checks, wire transfers and credit card payments (via phone). To help us credit your account quickly and accurately, if you are paying by wire, PLEASE reference the invoice number on your payment. We receive many wires with no reference, not even the publisher name. Sometimes the only info we have is the country of origin.

Our payment terms are net 30. Late payers will receive monthly reminders, and we do have a procedure for delinquent accounts. Due to the increasing size of membership it is virtually impossible for us to make exceptions to this process. If you receive a notice in error, we apologize.

If you have questions about payment or invoices please contact Lisa Hart, Senior Finance Manager.

CrossRef Operation Projections Favorable Against Budget for 2009

The 2009 full year financial forecast is slightly favorable against budget, based on strong membership growth and ongoing current deposits, coupled with above-budget backfile deposits in the first quarter.

Income Statement	2009 2nd Qtr.		2009 Year-to-Date		2009 Full Year
$000's	Actuals	Budget	Actuals	Budget	Forecast	Budget
Revenues	965	916	1,988	1,821	3,984	3,862
Expenses	971	935	1,735	1,765	3,588	3,534
Operating Income	(6)	(19)	253	56	396	328
Contingencies	-	-	-	-	(60)	(60)
Interest Income (Expense)	13	4	18	6	38	15
For. Currency Transl./Other	29	-	19	-	19	-
Net Income	36	(15)	290	62	393	283

Financial highlights from April through June 2009:

• Revenues: $965,000 - over budget by $49,000 (5%)
• Operating Expenses: $971,000 - over budget by $36,000 (4%)
• Cash Generated: $263,000 – better by $391,000 as compared against the forecast in last quarter’s report (main contributor: $298,000 stemming from the System Rewrite project now phased for the third and fourth quarters)
  

The cash balance at December 31, 2009 is forecast at $1,392,000.

Key Operating Statistics

Matching Rate Up 10 Points, Resolutions Up 36%

Queries increased 4% from 2008 to 2009, and the matching rate increased from 48% to 58%, leading to 89.7 million matches in January-June 2009.

Dashboard Targets		Jan-Jun '09	Jan-Jun '08	08/'09 change		Pro-rated Budget '09	Budget +/-		Full Year Budget '09
Queries		155,618,538	149,303,686	4%		125,000,000	24%		250,000,000
Matches		89,743,465	58,108,914	54%		50,000,000	79%		100,000,000
Match %		58%	39%	48%		40%	44%		40%
Current Deposits		1,190,063	1,042,353	14%		1,167,500	2%		2,335,000
Backfile Deposits		1,198,210	1,383,711	-13%		600,000	100%		1,200,000
Total Deposits		2,388,273	2,426,064	-2%		1,767,500	35%		3,535,000
Total Records		36,320,570	32,553,395	12%					39,855,570
# CrossRef DOI Resolutions		167,521,459	123,497,385	36%		137,500,000	22%		275,000,000
# Members		720	584	23%		680	6%		700
# Depositing prefixes		1206	963	25%		1050	15%		1100
# Linking prefixes		730	563	30%		690	6%		800
# Journals		20,425	20,814	-2%		20,075	2%		23,000
# Book Titles		87,759	67,943	29%		83,000	6%		99,700
# Conference Titles		15,651	13,122	19%		15,000	4%		17,000

Current deposits grew at a very healthy rate of 14%, more than offsetting the expected decline in backfiles, which was smaller than budgeted. Backfile deposits are projected to be lower for the rest of the year, since several large digitization projects have ended.

CrossRef DOI resolutions are up 36% from last year to 167 million through June 2009. The number of members increased 23%, and the number of members who meet their outbound linking requirements increased by 30% due to better procedures and communications.

Sincerely,

Ed Pentz
Executive Director
CrossRef