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Walmart has applied for various patents to integrate blockchain technology into its supply chain cycles, like a service that would record a customer’s purchases in a blockchain ledger, allowing the customer to resell the items on a sales platform using the record of purchase. Walmart’s “Smart Package” patent employs a blockchain-based tool to track package contents, environmental conditions, location, and other details. The company is also getting suppliers to put food on a blockchain, which it says will reduce waste, as well as improve contamination management and transparency.
