“Walmart, for instance, is exploring the possibilities of blockchain in overhauling its current supply chain” — — how about Walmart has already required use of blockchain for some of its supply chain. Some produce suppliers were notified last year they must use their Walmart (IBM designed) food safety blockchain system by Jan 2020. They’d been exploring it for two years prior to this announcement last year. The wording here is year’s out of date — Walmart is implementing and mandating use of its food safety blockchain.
Dr. Drew Miller, Blockchain Business Consultants