Can this be applied to ALL industries? Ecommerce, Food, Jewelry, etc.?
Very very can, especially if used for transactions of any luxury jewelry.
It's as simple as this, for example Prince 1 wants to send 1 kg of Diamonds of Zimbabwe to Prince 2.
Please use the Blokchain transaction method and method, where the transaction cannot be duplicated or deleted, so when we check the transaction signature, it still exists and can be seen by the public.