[yashg]

Can you please connect me with someone in the tech team at Walmart Canada who was part of this implementation? I am really curious to know exactly what it is that they store in blockchain. What kind of chain it is public or private. What is the consensus mechanism?

A public truly distributed PoW blockchain is slow and inefficient by design. It's a feature not a bug. A private, permissioned, controlled blockchain is pointless. So I really want to know what are these companies doing when they use blockchain for supposed benefits.

Blockchain in supply chain is often the most publicized use case. It somehow assumes that since blockchain is immutable (actually it isn't) whatever you add to it is authentic. Using it for supply chain assumes that a supplier won't lie about the origin or if they employed child labor. Using a blockchain doesn't automatically guarantee any of these.