If you shop at Wal-Mart, you might be buying packaged produce unlike any ever sold in a U.S. store.
The sliced apples or cut broccoli — the merchant won’t say what’s involved exactly — are being used to test blockchain, a new database technology. If successful, the trial could change how Wal-Mart Stores Inc., which serves some 260 million customers a week, monitors food and takes action when something goes wrong. That could spur big leaps in food safety, cut costs and save lives….
Blue Chain Web 