Alexandre Froger

Consider the 8 default post statuses that WordPress uses by default: 
* Publish: Viewable by everyone. (publish) 
* Future: Scheduled to be published in a future date. (future) 
* Draft: Incomplete post viewable by anyone with proper user role. (draft) 
* Pending: Awaiting a user with the publish_posts capability (typically a user assigned the Editor role) to publish. (pending) 
* Private: Viewable only to WordPress users at Administrator level. (private) 
* Trash: Posts in the Trash are assigned the trash status. (trash) 
* Auto-Draft: Revisions that WordPress saves automatically while you are editing. (auto-draft) 
* Inherit – Used with a child post (such as Attachments and Revisions) to determine the actual status from the parent post. (inherit)
A typical publishing workflow would be: 
 Auto-Draft > <code>Draft</code> > <code>Pending</code> > <code>Future</code> > <code>Publish</code> 
But what then? <code>Trash</code>? <code>Private</code>? These seem inadapted.
This is where the Unpublished (unpublish) post status provided by this plugin comes into play. 
It allows content publishers to assign a dedicated status to content they desire not to be published, and avoid assigning a semantically inaccurate status.

WP Unpublish

WP Unpublish adds a post status "Unpublished" to your WordPress Posts (Classic Editor).

Haseeb Ahmad Ayazi

<a href="http://techooid.com/crossref-and-doi" title="Document Object Identifier" rel="nofollow ugc">Document Object Identifier</a> is an alphanumeric string to identify an object and it?s persistent link over the internet. Consider it a linker shorter service but primarily used by the Academic Publishers.
The DOI for a document remains fixed over the lifetime of the document, whereas its location and other metadata may change. 
Referring to an online document by its DOI provides more stable linking than simply using its URL because if its URL changes, the publisher only needs to update the metadata for the DOI to link to the new URL.
Project Page <a href="http://techooid.com/dev/wp-plugins/doi-identifier" title="DOI Identifier Plugin" rel="nofollow ugc">DOI Identifier Plugin</a>
Visit <a href="http://techooid.com/dev/wp-plugins/" title="Science WordPress Plugins" rel="nofollow ugc">Techooid.com – WordPress Plugins</a> for more Plugins. 
Visit <a href="http://techooid.com/dev" title="Educational Tools and Plugins" rel="nofollow ugc">Techooid.com – DEV Center</a> for more Academic Projects.

DOI Identifier

Add DOI Indentifer Widget in your website used to find Research Article.

WP Unpublish vs DOI Identifier