Thank you so much for your help. I’ll definitely look into it.
A few thoughts: true decentalization, as your article says, brings with it many requirements for trustlessness. That’s particularly why I think that “instance operators” or the retailers listing the goods would be the only users with the permission to submit inventory items at first. That would solve the trust part of the trilemma until sufficiently decentralized technologies (crowd sourced oracles that list goods) are mature and understood enough to slowly and methoidcally be slotted in to replace them.