Solus Ravencoin Explorer

I was exploring the https://rvn.cryptoscope.io/movements/ and saw coinbase on the coin movements section, why is this? sorry if its a noob question but im sure there are many qualified people here.

https://preview.redd.it/9thy0blrspo91.png?width=1920&format=png&auto=webp&s=1a8cbe90f0cfb16fe89f8c29baff2dd3fbc5e710