Aren’t you losing the thread here? Your whole point has been that asset editing should be prevented, because the selling artist should have the final say on the use of the assets they sell. You’re the one arguing for a “lock bit” that somehow magically prevents data from being edited on the buyers computer.
Show me one asset buyer who will say “I would like to be prevented from further editing the assets I buy in the marketplace, so that the pristine final creation of the original artist is always preserved.” If that’s truly what any number of asset buying customers want, then, sure, go ahead!