Thank you.
Hey, if you want to improve your English, please make first letter of each new sentence capitlized...for example, here's your sentences:

What artists need to do in order to sell their art?

to be able to do so the artist must have direct access in the R.A.R.E protocol. which consists of four main prestigious actors as described in the following wahitepaper

This paragraph should look this way:

What artists need to do in order to sell their art?

To be able to do so the artist must have direct access in the R.A.R.E protocol which consists of four main prestigious actors as described in the following white paper:

You can also always post in your native language, then have a translated version below. This helps us understand that English is not your first language.