Digicash is mentioned. He also mentions bitcoin, "a fiat currency".

https://youtu.be/P49CuntfNGk 9 minutes

If that delivery is too flat for you, try

 https://youtu.be/0xZ4dHffdqw

When To Kill Your Rulers. This is the short form synopsis version. Four minutes. There's a thirty minute version available that goes into excruciatingly torturous detail about the topic too. 

Rr