I am currently printing Ziatypes. I've read that they can have a pretty long life, something on the order of a Platinum print, (?) but considering the paper, I was wondering what the life could be? Everything seems to deteriorate eventually. If you were to create a picture to have the longest life possible, what would it be? Prerhaps a painting? They seem to stick around for quite a long time. But concerning photography, what is your archival process.