Wal-Mart, like other retailers, has tried for years to improve traceability and transparency in the food supply chain but growers, packers and shippers cannot always supply all the data needed. But today blockchain ledgers, along with the smartphones and cloud computing, could make deep food chain traceability possible, Frank Yiannas, vice president of food safety at Wal-Mart, tells CIO Journal.

Source: Wal-Mart Readies Blockchain Pilot for Tracking U.S Produce, China Pork – CIO Journal. – WSJ