Implementing a Blockchain in Javascript

Learn how to write your own Blockchain with JavaScript. In this video I'll show you what is behind a blockchain by using simple code. It's not a complete implementation, but enough to understand how blockchains work and how they guarantee that blocks can never be changed.

After creating our blockchain we'll try and tamper with it. This will demonstrate a blockchains ability to detect fraud.

Blog post

Read my blog post if you want more information about this video.

Source code

The code used in this video is available on GitHub. Feel free to fork it, improve it and open pull requests!