The final issue to overcome (after adoption - getting everyone to put codes on their products and getting folks to know to verify) is fake authentication system

The final issue to overcome (after adoption - getting everyone to put codes on their products and getting folks to know to verify) is fake authentication systems. Nothing stops an attacker from printing up codes and writing "Verify online at e-pedigree.com" or "Text <number> to verify". It almost needs to be a country or world-wide single authority so people know one single number/app/site to trust.