Confused Regarding Authhash

[Michael T.]

Hi.
I am really confused regarding the Authhash.
I still don't know how to create one. I log in one of my servers and there is "Create" and "Manage" Authhash. So I decided to click on the "Manage" and it took me to this page. https://rmo.shoutcast.com/Settings/Radio/create
that says
SHOUTcast Streaming Service Generate revenue with your station

Let SHOUTcast provide your station a complete hosting solution with stream management and unlimited bandwidth.

*Requires enrollment in the monetization program.

100% Free

Problem, I already am hosting my station with a provider. I have been using the same provider for several years. So why do I need to fill out all that information?

I posted in another thread regarding help with the Authhash but received no help.
What is an Authhash? A set of letters and numbers?