That's neat, but it feels like it would work better with a trusted central authority. I guess there are a few reasons: 1. The central authority takes pressure

That's neat, but it feels like it would work better with a trusted central authority. I guess there are a few reasons: 1. The central authority takes pressure of the manufacture to build a verification system. 2. They could provide a single unified interface to consumers. Single QR validation app etc. 3. They could help track a product though resales. Which maybe more in the consumers, rather than manufacturers interests. 4. They could proactively investigate counterfeit claims. Potentially across different product lines.