Imagine you want to send money to a friend overseas. Wouldn't it be good if you didn't have to pay hefty fees to the intermediaries, and your friend received the funds very quickly? Now imagine ordering parts to make a product in your manufacturing plant. Wouldn't it be great if you were able to verify where each part comes from and have access to a reliable certificate on its quality automatically? Also think about dealing with energy use or selling off your excess solar energy as a prosumer. Wouldn't it be nice if you could purchase cheaper energy or sell it profitably at ease?