Blockchain works for currency problems because the unit of tracking is the unit of value, the entire system is fully self-contained and no oracle is required to

Blockchain works for currency problems because the unit of tracking is the unit of value, the entire system is fully self-contained and no oracle is required to pump information into and out of the system. None of these things are true of supply chain problems. All it adds vs bog-ordinary B2B protocols is the ability to waste electricity on a galactic scale, instead of a merely planetary one.