Providence and audit trails can stop all sorts of fraud and misrepresentations. In the case of the supply chain for precious stones and jewelry, the application is pretty simple. If the major producers set up providence for the legitimate production of their product, and that is maintained through the supply chain, then the insertion of "blood diamonds" or other illegitimate products is much harder. They would lack the providence trail that the legitimate product has.
So say you are a re-seller. You have some inventory of legitimate product that you wish to mix with illegitimate product to increse your supply. With digital providence, you can only document the legitimate product you are holding. You can't document the illegitimate product, and transferring the documentation of one to the other eliminates your ability to sell the legitimate product as legitimate.
This works for a host of goods and even services.
And it doesn't require TPP
Paul