certified validation of prefix ownership (and path, as has been pointed out) would be great. it's clearly a laudable goal and seemed like the right way to go. but right now, no one is doing it. the rfcs that's i've found have all expired. and the conversation about it has reached the point where people seem to have stopped even disagreeing about how to do it. in short, it's as dead as dns-sec. so what are we do do in the meantime?
Perhaps people should stop trying to have these operational discussions in the IETF and take the discussions to NANOG where network operators gather. Writing RFCs is a fine way to document operational best practices, but it is not a good way to work out joint operational practices. Of course, NANOG is no magic bullet, but it seems like a more reasonable place to talk about how to make things better. A good start would be to try and get an agreed statement of what the problem is. Once you have broad agreement on the problem, then move on to solutions. --Michael Dillon