Currently, trust in the retail system is linked above all to the trust placed in the marketplace where a purchase was made - and this explains why Amazon is, in fact, the first choice of a user who is going to shop online.


Startups like OpenBazaar are developing utilities based on distributed registries designed to connect buyers and sellers without the intervention of a super partes intermediary and, of course, without the associated brokerage costs.


In these cases, trust in the system would be ensured by the system itself of the block chains and by the extensive use of smart contract, as the startup OB 1 well understood, which, to develop an application to be used in this sector, has raked in investments for over 4 million dollars.