As an example, food safety in the developing world. Food firms claim food is fresh and came from places where it did not come from. If you introduce an agricultural and food tagging system that logs food item IDs into a blockchain-based system, you can know when and where food was made and grown.
Note that this ignores the huge expense of measuring and storing all of this data, but I've seen some interest in these use cases in Asia, especially for staple crops like rice.
Note that this ignores the huge expense of measuring and storing all of this data, but I've seen some interest in these use cases in Asia, especially for staple crops like rice.