Because you want a secondhand (not secondary) market where things can move far far away from the originator plus you can prove it's history which in itself can

Because you want a secondhand (not secondary) market where things can move far far away from the originator plus you can prove it's history which in itself can have value (Bill Gates used to own it). It can live its own life so to speak. And thats just art, then there is digital art which is an even bigger problem. It's the unique history + decentralized that creates the value as it becomes more like a physical object. I don't think it's the situation in a nutshell. It takes time but the art world (especially involving China and Russia) is filled with fakes and fraud.