I would like to clarify such a point as working with the master nodes. What exactly do I need to be the owner of this site, because in this case I have a chance to receive a passive income, I'm right?
Yes, that's right, you can receive passive income in this way. Since this is a PoS system, for this it will most likely be necessary to hold a certain amount on your wallet.
And what exactly will this purse be? It should be some kind of a temporary purse compatible with the token of this project or not?