CLOCKSS Archive

CLOCKSS Archive
Name	CLOCKSS Archive
Type	Not-for-profit archive
Founded	2008
Headquarters	London, United Kingdom; New York, United States
Area served	Global
Key people	Triggered by collaborative boards from Library of Congress, Harvard University, Yale University
Purpose	Scholarly content preservation

CLOCKSS Archive is a dark, distributed long-term preservation archive created to ensure continued access to scholarly literature published in community-owned formats. It operates as a partnership among scholarly publishers, research libraries, and cultural institutions to preserve digital journals, books, and metadata so that content remains available even if publishers cease distribution.

Overview

CLOCKSS was launched to mitigate risks to scholarly communication by combining the resources of publishers such as Wiley-Blackwell, Springer Nature, Elsevier, and Oxford University Press with libraries including Columbia University, Princeton University, University of Cambridge, and University of California. The organization leverages the combined expertise of institutions like the Library of Congress, British Library, and National Library of Medicine alongside standards bodies such as Internet Archive collaborators and preservation initiatives referencing formats endorsed by International Organization for Standardization.

History and development

The initiative originated from cooperative efforts among the publishing sector and library consortia including CLOCKSS founding partners affiliated with Portico, LOCKSS, and national preservation strategies in Australia, Canada, and the Netherlands. Early milestones involved partnerships with major academic publishers after policy discussions at conferences hosted by Association of College and Research Libraries and International Federation of Library Associations and Institutions. Subsequent development tracked technological advances promoted by projects at Harvard University and Stanford University and governance models influenced by the corporate stewardship debates involving JSTOR and Project MUSE.

Governance and funding

Governance is structured through a board representing stakeholders such as participating publishers, university libraries like Yale University, University of Oxford, and research funders including Wellcome Trust. Funding streams include membership fees from publishers and subscribing libraries, grants similar to awards from Andrew W. Mellon Foundation and contracts reflecting practices at National Endowment for the Humanities. Oversight mechanisms mirror governance practices found at Creative Commons and accountability frameworks typical of Charity Commission for England and Wales filings for nonprofit entities.

Archiving mechanisms and technology

CLOCKSS employs a distributed "dark archive" architecture borrowing concepts refined by LOCKSS and hosted on nodes located at partner institutions like University of Toronto, New York University, King's College London, and National Institute of Standards and Technology. Technical stacks incorporate checksum validation, format migration strategies drawing on ISO 14721 recommendations, and redundancy practices similar to those used by Digital Preservation Coalition members. The archive supports file formats common in scholarly publishing such as PDF, XML, and digital object identifiers compatible with CrossRef metadata services, and uses harvesting tools akin to systems developed at DuraSpace and Fedora Commons.

Content scope and participation

Content preserved includes peer-reviewed journals, monographs, and supplementary materials from publishers like Cambridge University Press, Taylor & Francis, SAGE Publications, and society publishers including American Chemical Society and Institute of Electrical and Electronics Engineers. Participating libraries and consortia—examples include Research Libraries Group, Consortium of European Research Libraries, and national libraries of France and Germany—contribute to the collection and validate ingest policies. Agreements typically address rights and permissions modeled on licensing practices familiar to Association of Research Libraries members and publishing contracts used by Committee on Publication Ethics signatories.

Access, preservation policies, and legal aspects

Access is generally "dark" and restricted until a defined trigger event — for instance, publisher insolvency or cessation of distribution — after which content is made available under policies that consider intellectual property frameworks such as Berne Convention principles and national exceptions influenced by statutes in United Kingdom and United States law. Preservation policies are informed by standards from International Federation of Library Associations and Institutions and legal advice comparable to counsel consulted by National Archives (United Kingdom) and U.S. Copyright Office on orphan works and continuity of access.

Impact and reception

CLOCKSS has been cited in discussions about resilience in scholarly communication alongside initiatives like Portico, Internet Archive, and JSTOR and has influenced policy dialogues at venues such as meetings of the Open Access Scholarly Publishers Association and symposia organized by SPARC. Libraries, publishers, and funders have praised its collaborative governance and technical robustness, while commentators in forums like Scholarly Kitchen and reports from the Research Information Network have debated funding models and sustainability. The archive's role in safeguarding cultural heritage has been acknowledged by national institutions including the British Library and professional associations such as Association of Research Libraries.

Category:Digital preservation organizations