There are two points I think you are mistaken on. 1. History in the real world is very much traceable. That's what a paper (celulose or digital) trail is. The

There are two points I think you are mistaken on. 1. History in the real world is very much traceable. That's what a paper (celulose or digital) trail is. The history may not be physically attached to the object but the interested parties should have the appropriate property documents. And when there are contradictory claims, documents trump spoken agreements. 2. In the physical world no to objects (above atomical level if you want to be pedantic) are the same and there is a limited supply. In the digital world, a copy is absolutely identical and indistinguishable from its original and from the potential infinity of other copies.