After working with IBM for over a year on a food safety blockchain solution, Walmart says it's pushing produce suppliers to use blockchain by September 2019 (Ron Miller/TechCrunch)

Ron Miller / TechCrunch:
After working with IBM for over a year on a food safety blockchain solution, Walmart says it's pushing produce suppliers to use blockchain by September 2019  —  Walmart has been working with IBM on a food safety blockchain solution and today it announced it's requiring that all suppliers …



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