How to add Unique ID for each entrie (or post)

Hi. I would like to know if there is any way I could add an ID to each entrie that upload.

I using the CMS for a portfolio site, and I need to assign and ID to each project so I can use that ID to make the link to each project.

Any idea of how can I make that possible??

I appreciate all the help.

There’s a couple of widgets out there which you can use, like this one: