Obtaining a DOI (Digital Object Identifier) for a journal typically involves a multistep process that includes the following: Publish Your Journal Article: First and foremost, you need to have a journal article or content that you want to assign a DOI to. This content should be published or accepted for publication in a reputable journal. DOI registration agencies do not assign DOIs to unpublished or non-peer-reviewed content. For more details https://www.doie.org/