IBM Announces Blockchain Collaboration with Major Retailers and Food Companies to Address Food Safety - A group of the world's leading retailers and food companies are working with IBM to explore how blockchain technology can be used to make the food supply chain safer. Blockchain technology can be used to improve food traceability by providing trusted information on the origin and state of food. Pictured is a crate of oranges being scanned as part of a food safety blockchain. (Photo credit: Connie Zhou for IBM)