Walmart’s ongoing investigation of blockchain technologies seems to have intersected with its growing interest in joining the healthcare space, according to a patent application released earlier this ...

Walmart and Sam’s Club have sent letters to their suppliers of fresh leafy greens, asking them to trace their products all the way back to the farm using blockchain technology. The initiative, ...

Walmart says it now has a better system for pinpointing which batches of leafy green vegetables might be contaminated. Walmart says it now has a better system for pinpointing which batches of leafy ...