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Walmart, Sam's Club to put food products on blockchain

Walmart and its unit Sam's Club said on Monday leafy greens suppliers will be asked to implement real-time, farm-to-store tracking using blockchain technology by next September, as the retailer tackles food-safety incidents.

T-Mobile revamps prepaid brand to spruce up image

T-Mobile US Inc said Monday it is renaming its prepaid brand to Metro by T-Mobile and adding two new unlimited phone plans that will include perks like Google One cloud storage and Amazon Prime, in an effort to remove the perception that prepaid plans have subpar service.

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