We recommend that Communities create their own Crossref Memberships. Whether you plan to migrate to another platform or to self-host PubPub Platform, having your own Crossref Membership will allow you to migrate existing DOIs to this account and then register new ones for future content. All existing DOIs will still resolve after December 2026 for content openly archived on PubPub. Therefore, groups that plan to simply archive existing content on PubPub Legacy after December 2026, do not need to create a Crossref account.

Once you have a Crossref account, we'll need to work together to request a title ownership transfer. Please follow Crossref's instructions for doing so. Please email Crossref alerting them of the title transfer and copy hello@pubpub.org on the email. We will then reply all within 5 work days to acknowledge and confirm this transfer.

Furthermore, if you registered DOIs for your Community and you have decided to leave PubPub for another platform option, you will need to update the resolution URLs when content is live on your new platform. To update your DOI resolution URLs, please follow the Crossref documentation and use their template and upload tool to submit them in bulk. 

For DataCite members, please see DataCite's support documentation to Update a DOI or Updating DOIs with REST API. 

For those planning to self-host PubPub Platform, you will be able to port the current DOIs for all the Legacy pubs you have into a self-hosted Platform Community. That will require the Community (or a journal, conference organization, or institutional sponsor) to have a Crossref membership in order for us to transfer the existing DOIs to the self-hosted version & for the Community to register DOIs moving forward.