...
For example, imagine there are many channels data from electric utilities, shipping companies, airlines, and suppliers of industrial commodities such as plastics or steel. Our app is a carbon calculator. The user of our app would pass in his keys to access the data channels of his utility, based on his status as their customer. We would pass those keys to the utility. If they validate them, we would get the user's electric bill. We could then multiple the electric bill by the emissions factors of the utility to calculate our user's emissions. We would then publish a token of the user's emissions on a private channel, and then delete his electric bill and his keys from our app. The entire process is run as a serverless micro service.
...