I read the same article, but note-—
It was about Walmart CHINA—not USA. That is, pork SOLD in China uses the blockchain solution.
Frankly, I just do not want to eat meat grown, slaughtered and processed in any other country except the USA.
I’ll make exceptions for European cheeses, sardines and herring, German hams, and anything from Canada.
When I read a label on a food product and it says made/processed/canned in China, I do not buy.