Artano wants to abstract the knowledge needed to mint NFTs as much as possible. We decided to introduce the term of "collections" where each collection has a specific name, policyID, royalty address and royalty percentage. Collections can be used to group NFTs together for a specific collection and the user can create as many collections as they'd like. On Artano, all NFTs in one collection have the same PolicyID and universal royalties.   Every time you create a new collection, you have to pay a small fee in ADA, since a token is created and burned, which prevents changing royalties later. Universal royalties on Artano can also be read on other Cardano marketplaces, so your royalties apply everywhere where the current CIP standard is respected.