A really informative video on making a blockchain in Ruby

This video is great. You will learn much more than just blockchain. I learned about the Faraday Gem for http requests. It is really easy to use. Learned about PKI and history of where the idea for blockchain came from. It is rather long; 2 and a half hours so if you code along stopping and starting it will take a few hours. Enjoy!

Let's build a blockchain! — A mini-cryptocurrency in Ruby (Haseeb Qureshi)