CARREFOU

MASSY, FRANCE

The French supermarket chain is tracking more than 30 product lines on the blockchain, including farm-raised eggs, Norwegian salmon and Rocamadour cheese. These products are tagged with a QR code that customers can scan to find out more about where their food comes from. Carrefour says the feature has boosted sales and aims to expand it to 100 product lines by the end of next year.

BLOCKCHAIN PLATFORMS: IBM Blockchain, Hyperledger Fabric