I know next to nothing about block chain, its versions (WTH is ethereum blockchain?), or how it is used with cryptocurrencies. But I have recently learned that it has been applied to virtual cats known as CryptoKitties. More here: https://www.cryptokitties.co/
I thought this was kind of fun, because there are elements of data science, as well as “genetics” when breading these virtual kitties. Here’s a bit more about their genetics: https://hackernoon.com/hacking-the-cryptokitties-genome-1cb3e7dddab3