a document-based blockchain would curb publishers hard. the CDL is sadly a lousy way to implement lending, as it doesn't offer reassurance that people borrowing documents aren't replicating them. everyone lost their minds making silly useless NFTs of shitty artwork, but did any of those "geniuses" in the dying publishing empire bother to implement any NFTs of their publications? no instead they bitched about libraries being the number one cause of their profit losses (which is an absolute LIE). the problem isn't lending books (in whatever medium) the problem is a lack of an effective brain trust in the upper echelons of industry to embrace tech and use it to innovate and prosper. there is no reason why books can't be woven into a blockchain, and then license the usage to libraries for lending. everyone wins!