Crossref

PKP and Crossref partner to help publishers and journals using Open Journal Systems (OJS) improve discoverability of their content and quality, accuracy, and open sharing of metadata. Since 2014, PKP has been a Crossref Sponsoring Organization and has helped provide Crossref and DOI services to publishers in low income countries. PKP and Crossref work collaboratively to develop and maintain the Crossref and DOI Plugins for OJS and OPS.

Crossref plugins

Learn more about how to use the DOI Plugin and Crossref Plugin to register DOIs and automatically send data to Crossref in our DOI Plugin Guide and Crossref Plugin Guide. The Crossref Plugin Guide also explains how to use additional Crossref plugins for reference linking, funding information, Similarity Check, and Scopus/Crossref Citation.

PKP as Crossref Sponsoring Organization

Since 2014, Public Knowledge Project has served as a Crossref Sponsoring Organization. This means PKP can act as a membership representative for PKP Publishing Services’ “enterprise” clients or eligible publishers/organizations/journals using Open Journal Systems (OJS) who are not able to join directly due to financial, administrative, or technical barriers.

Eligibility

At present, PKP supports two kinds of sponsored memberships:

  1. Applicant organizations/journals from countries on Crossref’s Global Equitable Membership (GEM) list that use OJS that meet the following criteria:
    • OJS version must be 3.1.2 or higher.
    • Organization/journal must have both mailing and billing addresses in GEM countries.
    • Organization/journal must pass an evaluation process confirming accurate information against their application.
    • Journal revenue must fall under tier 1 of the Crossref membership fee structure of < $1 million USD annually.
  2. Journals at the “Enterprise” hosting tier with PKP Publishing Services that meet the following criteria:
    • Can be using any version of OJS.
    • Journal revenue must fall under tier 1 of the Crossref membership fee structure of < $1 million USD annually.

List of Eligible Countries

Organizations/journals from the following countries (as identified by Crossref’s Global Equitable Membership criteria, Jan 1st, 2023) may be eligible for sponsorship. We ask for both mailing and billing addresses on our membership application form and both of these need to be in an eligible country (not necessarily the same one) to qualify.

  • Afghanistan
  • Bangladesh
  • Benin
  • Bhutan
  • Burkina Faso
  • Berundi
  • Cambodia
  • Central Africa Republic
  • Chad
  • Comoros
  • Democratic Republic of Congo
  • Côte d’Ivoire
  • Djibouti
  • Eritrea
  • Ethiopia
  • Gambia
  • Ghana
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Honduras
  • Kiribati
  • Kosovo
  • Kyrgyz Republic
  • Lao PDR
  • Lesotho
  • Liberia
  • Madagascar
  • Malawi
  • Maldives
  • Mali
  • Marshall Islands
  • Mauritania
  • Micronesia (Federated States of)
  • Mozambique
  • Myanmar
  • Nepal
  • Nicaragua
  • Niger
  • Rwanda
  • Samoa
  • São Tomé and Principe
  • Senegal
  • Sierra Leone
  • Solomon Islands
  • Somalia
  • South Sudan
  • Sri Lanka
  • Sudan
  • Tajikistan
  • Tanzania
  • Togo
  • Tonga
  • Tuvalu
  • Uganda
  • Vanuatu
  • Yemen
  • Zambia

Crossref will review the eligibility criteria annually and note any changes to sponsoring organizations. The IDA reviews their criteria list annually, and while it is not common to have lots of movement, Crossref will notify members whose country moves on or off the IDA list of any upcoming fees (or the removal of them) so they can plan and budget. For further eligibility criteria and any other information, contact us.

Apply for Sponsorship

If you believe your journal meets the PKP Sponsorship requirements and you’d like to submit an eligibility form, you can click here to fill one out. If your journal does not meet these criteria, please review Crossref’s list of sponsors to locate a sponsor that might be a better fit.

Crossref Support Services

For GEM, Sponsored Members

For sponsored memberships from GEM program countries, this category, PKP provides the following:

  • Crossref membership and deposit fees covered
  • Documentation for both the DOI plugin and Crossref plugin within OJS via the PKP Documentation Hub
  • Follow-up email support for account setup
  • Review of conflict reports
  • Support via the PKP support forum

For PKP Publishing Services Clients

PKP Publishing Services provides additional Crossref support to its clients. All hosted clients can rely on our internal expertise to assist with plugin setup and support. Additionally, Enterprise clients may be eligible for sponsored membership, with DOI deposits, Crossref membership, and additional support included as part of the Enterprise hosting package. For more information, please contact us.