Before submitting an application, please check whether your Publisher meets the requirements to use the Similarity Check service through the following page: Crossref Similarity Check – Eligibility
To find your Crossref Member ID, please log in to the DOI by Pubmedia system: Login DOI by Pubmedia
After successfully logging in:

Return to the Similarity Check Eligibility page mentioned in Step 1. If your Publisher is confirmed as eligible, proceed with the application by selecting “Apply Here.”
You will then be directed to complete the information required for the Similarity Check application.
We recommend submitting the application using the Publisher email address that is already registered and linked to Crossref.
Enter the name and email address of the registered Publisher.
Under Point 3, select: Yes – OJS
Please make sure that the Publisher's DOI Prefix displayed is correct and matches your Publisher's DOI Prefix.
Select the data centre region that corresponds to your location.
Enter the contact information according to the roles and responsibilities of the relevant team members, particularly those responsible for editorial and technical matters related to Similarity Check.
For this section, select: Yes – UniveID dan Pubmedia Group
After completing all required information:

Finally, click “Kirimkan lamaran saya” (Submit My Application) to submit your Similarity Check application to Crossref. The application process with Crossref generally takes approximately 7 business days. Please allow sufficient time for Crossref to review and process your application. If you experience any issues or have questions during the application process, please contact the DOI by Pubmedia Admin for assistance.