It enables a group of independent entities, which have their own interests and information to protect, to share a common platform that holds information of common interest. It helps to have a dominant company driving the use of blockchain, as is the case in two supply chain applications that may be close to going into production. For example, Walmart has been running a pilot project with IBM’s Food Trust Solution, a blockchain-enabled distributed ledger of food system data, to track lettuce from its suppliers to Walmart shelves.