But it really isn't sufficient for the artist to just stick a wallet address somewhere in files seeded, and hope for the best.
The format needs to formalize support for it, my players need to verify and make that information conveniently accessible to me, preferably in a one-click-to-tip-artist using my configured crypto wallet kind of fashion.
For me this is one of the actual legitimate use cases of cryptocurrency. These microtransaction kind of business models where folks like artists are happy to receive tiny amounts like tips if they can get it repeatedly from all their fans globally, passively, just by having created their art and putting it out there where it's all effectively "long tail" revenue, stacking as they produce more work, ad infinitum.