Earlier in the year I did a live Pluralsight webinar to about 700 people talking about what a Blockchain is? Why you would want to use one? The differences between a Blockchain and a Database and other interesting facts about the technology.
The recording of that Webinar is now available to watch on YouTube.
If you are interested in learning more about Blockchain from either a high level executive briefing standpoint or more as a software developer and architect, then I have the following courses available at Pluralsight.