I've been following Keygen for quite a few years (but alas, no projects suitable to try it), partly because of the excellent docs about licensing schemes, and partly because licensing systems (and the breaking thereof) have been a recurring interest to me ever since punching in a building's worth of XP keys and wondering, none of these boxes are connected to anything... how do they know what I typed in is valid?

For that reason, Keygen shocked me when it first came out as a public(!) licensing platform... how could they get away with documenting their secret sauce?

Cheers to you ezekg, and may transparent licensing schemes prevail.