CLOCKSS and CHORUS Partner to Support Perpetual Public Access to Articles Reporting on US Funded Research

Stanford, CA and Staten Island, NY March 30, 2015. The CLOCKSS Archive, a not-for-profit joint venture between the world’s leading academic publishers and research libraries, has entered into an agreement with CHORUS (Clearinghouse for the Open Research of the United States), the not-for-profit, cost-effective, and sustainable public access solution, to support the archiving, preservation, and perpetual public access to articles reporting on US federally funded research, at no additional cost to taxpayers.

As a result of the agreement, CHORUS Publisher Members will be able to take advantage of a special arrangement with CLOCKSS to establish permanent, perpetual public access to content and ensure the integrity and sustainability of the scholarly record. CHORUS works with US federal agencies, publishers, service providers, and researchers to enable, monitor, and preserve public access to published articles. Built on CrossRef’s open, interoperable framework, CHORUS services are initiated when researchers submit their articles to publishers.

“Safeguards are necessary to ensure that public access to articles reporting on federally funded research is never disrupted. That’s where CLOCKSS comes in,” says Howard Ratner, CHORUS Executive Director. “This agreement allows CHORUS partners to rely on CLOCKSS’ rich and trusted repository of content in the event that publicly accessible research articles become unavailable.”

CLOCKSS has agreements with 200 publishers and has preserved more than 11,000 academic journals, from participating scientific publishers. Through the agreement, CLOCKSS will provide public access to the archived publications should a publisher fail to provide public access for a period of longer than 30 days and there no other parties providing public access.

“By partnering with CHORUS, CLOCKSS is meeting the needs of government funding agencies, publishers, and others in the scholarly community to ensure continued public access to articles reporting on funded research,” states Randy S. Kiefer, Executive Director of the CLOCKSS Archive.


The CLOCKSS Archive is a not-for-profit joint venture between the world’s leading academic publishers and research libraries whose mission is to build a sustainable, geographically distributed dark archive with which to ensure the long-term survival of Web-based scholarly publications for the benefit of the greater global research community. CLOCKSS is for the entireworld’s benefit. Content no longer available from any publisher (“triggered content”) is available for free.

CLOCKSS uniquely assigns this abandoned and orphaned content a Creative Commons license to ensure it remains available forever. For more information about CLOCKSS, visit


CHORUS advances sustainable, cost-effective public access to articles reporting on federally funded research and delivers on agency needs at no extra cost to taxpayers. Built on widespread open technology, CHORUS provides a unified framework that works across the spectrum of public-access policies and in concert with diverse proprietary and public access license terms — with no disruptive and duplicative consequences. CHORUS’distributed-access approach avoids unnecessary duplication of effort and expense by directing search results to content in context with valuable tools and information on the original publication site.

The first initiative of the non-profit 501 (c)(3) membership organization, CHOR, Inc., CHORUS is monitoring tens of thousands of journal articles reporting on funded research. CHORUS members and signatories collectively produce the vast majority of published peer-reviewed journal articles; more than two-thirds of CHORUS members and a majority of its board are not-for-profit organizations. Learn more at



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