Walmart and Sam’s Club have asked their suppliers of leafy greens to start using blockchain technology to ensure “real-time, end-to-end traceability from farm to table” and to “speed up identifying, researching and reacting to food safety situations.”
In a statement, Walmart said these systems are expected to be in place by September 2019.
Blockchain is a record-keeping system that allows for secure data sharing.
In a blog post, Matt Smith of Walmart Communications likened the blocks of information in the blockchain to railroad ties and the chain to the rail.
“To
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