a prominent example is the track and trace case for tuna to combat illegal fishing using devices for tracing eg rfid tags qr codes nfc devices or cameras information about the fish can be collected at almost any point throughout the supply chain visser and hanich as the data is recorded on a transparent and immutable registry each fish can be tracked back to its origin by respective regulators ngos and consumers the technical implementation of this use case can be applied to other natural capital in agriculture livestock and forestry