CLOCKSS By the Numbers

30 Million Journal Articles

75,000 Books

53 Triggered Titles
Open Access

12 Mirror Repository
Sites

300 Supporting
Libraries

260 Participating
Publishers

Features

SECURE DISTRIBUTED INFRASTRUCTURE

SECURE DISTRIBUTED INFRASTRUCTURE

Mirror repository sites at 12 major academic institutions around the world guarantee long-term preservation and access. Our approach is resilient to threats from potential technological, economic, environmental and political failures.

INNOVATIVE TECHNOLOGY

INNOVATIVE TECHNOLOGY

Built with proven LOCKSS open-source technology, CLOCKSS preserves scholarly publications in original formats. The polling-and-repair mechanism ensures the long-term validity of the data.

PERMANENT OPEN ACCESS

PERMANENT OPEN ACCESS

CLOCKSS is the only dark archive that assigns Creative Commons Open Access licenses to all triggered publications to ensure they always remain available and openly accessible to everyone.

SUSTAINABLE ORGANIZATION

SUSTAINABLE ORGANIZATION

A collaboration between the world's leading research libraries and academic publishers, CLOCKSS is a financially secure, independent non-profit 501(c)(3) organization, governed by its Board of libraries and publishers.

Contact Kim Smilay

Contact Craig Van Dyck

CLOCKSS is a tax-exempt, 501(c)(3), not-for-profit organization, governed by a Board of Directors made up of librarians and publishers.