Systems that account for physical possession of gold, whether allocated and stored under individuals' identities, or unallocated and used in other transactions (as banks do with money) do not rely upon any specific accounting or transaction system. There are many ways of keeping track of gold accounts, including purely manual records on paper. They all work, if that is the intent. A gold trader that touts its linux system of accounting and trading as somehow essential, or as giving it some sort of advantage in the world gold market, is suspicious. The key point of this article is that apparently no one is allowed to confirm that the gold actually exists. Good luck.