Blockchain technology is also known as “Distributed Ledger” technology.  That is, a sequential ledger is shared (distributed) amongst a group of people/entities.  This terminology, at least, seems to imply that blockchain would be a good way to represent—in digital form—the transactions in a supply chain, which are distributed geographically and over time.  Way back in 2011 I posted an essay aimed at analyzing the viability of three different ways of digitally modeling the pharma supply chain.  I called it, “The Viability of Global Track & Trace Models”.  I’d like to revisit that essay to see how blockchain technology might affect my conclusions.