Launch of Private LOCKSS Network for OJS Journals

June 1st, 2016 by  | 4 Comments

PKP is pleased to announce that the PKP Private LOCKSS Network (PKP PLN) has moved into full production mode and is now providing free preservation services for any OJS journal that meets the minimum criteria and has upgraded to the newly released OJS 2.4.8. Any OJS journal that has an ISSN and has published at least one article online through OJS can choose to agree to the terms of use and be preserved in the PKP PLN.

“The PKP PLN’s critically important work to integrate the award winning LOCKSS software with the PKP framework vastly reduces digital preservation ingest costs”, said Victoria Reich, Executive Director LOCKSS Program, Stanford University Libraries. “This model approach enables many thousands of at-risk journals from long tail publishers to be effectively, efficiently and affordably preserved for future generations.”

Bronwen Sprout, PKP PLN Coordinator, added “the PKP PLN represents a much-needed addition to a wider range of critical services for scholarly publishing and exemplifies the increasing range of publishing services now provided by PKP.”

Preservation nodes in Canada, the United States, and Europe are cooperating to provide the preservation infrastructure for the PKP PLN (see map).

The PKP PLN is a member of the Keepers Registry, a central directory of preservation services for electronic journals, maintained by the University of Edinburgh and the ISSN International Centre. Membership in the registry enables PKP to share information on archived titles with the Registry and in turn with initiatives such as Directory of Open Access Journals (DOAJ).

According to Lars Bjørnshauge, Managing Director of DOAJ, “The PKP PLN will have positive implications for the OJS-based journals which apply for inclusion in DOAJ and those that may wish to qualify for the DOAJ Seal. To demonstrate our support for this initiative, DOAJ will add the PKP PLN as one of the resources that is explicitly mentioned as a preservation service in our application form and criteria.”


The LOCKSS Program, Stanford University Libraries, built on the principle that “lots of copies keep stuff safe”, provides open source tools and support to communities who use LOCKSS to ensure preservation and continual access to both purchased and locally produced scholarly content.  Visit the LOCKSS website at

About DOAJ

The Directory of Open Access Journals is a community-curated list of open access journals and aims to be the starting point for all information searches for quality, peer reviewed open access material.  DOAJ was launched in 2003 at Lund University, Sweden, with 300 open access journals and today contains nearly 9,000 open access journals covering all areas of science, technology, medicine, social science and humanities.

About PKP

The Public Knowledge Project was established in 1998 at the University of British Columbia. Since that time PKP has expanded and evolved into an international and virtual operation with two institutional anchors at Stanford University and Simon Fraser University Library. OJS is open source software made freely available to journals worldwide for the purpose of making open access publishing a viable option for more journals, as open access can increase a journal’s readership as well as its contribution to the public good on a global scale. In 2016, almost 10,000 actively publishing journals around the world were using OJS software.  More information about PKP and its software and services is available at

4 Comments on "Launch of Private LOCKSS Network for OJS Journals"

  1. Mark Jordan says:

    Hello Dieter,

    This may sound like an evasive response, but it’s an honest one. We cannot predict the future. But like most digital preservation services, we are making a short-term commitment to ensuring content in our service will be accessible in the future, plus planning for the future by establishing contingency plans in case (or more realistically when) PKP ceases to exist:

    Short term: Content in our network is stored in multiple, geographically distributed locations using a secure and proven technology. It is easy to add new copies as the institutions hosting existing copies can no longer do so. For as long as OJS is a viable platform, access will be provided via loading the preserved content into one or more OJS instances osted by network partners.

    The future: The terms of use journal mangers agree to for including content in the network are designed to be as future proof from a legal perspective as possible. We are working with other preservation services so that they will act as escrow agencies in case PKP and its partners cease to exist. The content preserved in our network is in nonproprietay formats that will allow establishment of authenticity and ease format migration in the future.

    I am sorry if this answer is not specific enough. But citing a number of years would be disingenuous on our part, as it would for any other preservation service. The most honest answer I can give is for as long as PKP and its partners are around, and after that, to make it as easy as possible for those who succeed us to continue to preserve the content they inherit from us.

  2. Dear All,

    first of all thank you very much for providing this service.
    I would be very grateful if you could let me know what long-term preservation and access do mean in actual numbers of years as this is a question frequently asked by the OJS journals we provide hosting to at CeDiS.
    Thank you very much for your efforts.

  3. D/Sir

    I wish to include my journal contents in PKP Locks preservation. This is our journal’s unique identifier for the PKP PLN:

    We have also activated/set the PKP Plugin on our journals website accordingly.

    Thanks and regards

    • Kevin says:

      Hi Saurabh — thank you for joining the PKP PLN. There is no need to send us any additional information. Everything is taken care of within OJS when you activate the PKP PLN plugin and agree to the terms of use. You are automatically included in the network.

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