Well seeing as I haven't gotten any PMs as of yet let me just say that I've purchased a painting on auction at ethereum.org and I've received it by parcel post.
Now I want to pay the artist and have that payment and an agreement for copyright placed into the blockchain. Both myself and the artist don't have the skills to do this. I imagine some multisig or just acceptance of the funds can be considered a binding contract as far as ownership and copyright law goes.
So if this is doable...or if it isn't please let me know. My ignorance doesn't recognize limitations.
fdyl
edit/ here is the link to the auction with all the details regarding copyright agreement, there is more in PM's with the artist that may be pertinent as well but we can save that for later. https://forum.ethereum.org/discussion/1273/into-genesis-oil-painting-auction/p1