Build your own Blockchain

by Dorian Somers


45 euros
Dorian Somers


Join us in this onde-day workshop to understand how blockchain works and learn how to build a first simple cryptocurrency that can be used on a local network.

After two short lectures, you will face some challenges about a specific topic in pairs.

Is this course for me?

This training is aimed at actual developers or people that have a good first knowledge in code (any object-oriented language).

Using your favorite OOP languages (The recommended Javascript, Python or Ruby, the last one will be used in the lectures) you will have to turn all the tests green to make it work. But please, be still creative in building your own “Coin/P2PNetwork”.



10:00 – 11:00: P2P networks – Lecture #1

In a centralized database is pretty easy to understand how to keep data up-to-date. Now, how can we achieve this in a decentralized and secured way?

11:00 – 14:00: Create a gossip protocol – Workshop #1

Let’s build an actual P2P network between us and use it to share data amongst all participants. Each pair of participants will construct a node that respects a specific protocol to be able to talk to the other nodes. Use cryptography to sign your data.

15:00 – 16:00: Blockchain – Lecture #2

Why is Blockchain called this way, and how do hashing functions and Merkle trees make it immutable? What’s a consensus algorithm and how do we link this chain with our P2P network?

16:00 – 19:00: Create a Blockchain instance – Workshop #2

Create an actual instance of a basic Blockchain with a Proof of Work consensus, linked it with your P2P Network. We can now create our own “Coin” and exchange it for a beer for example 😉

Teacher’s biography

Dorian Somers is a Developer at SmartCitizen & P2P evangelist. He went from the construction field to the code world through three different startups. Enthusiast learner, he loves to teach too.

He has been a Mathematics Teacher and more recently Front-End Code teacher at Le Wagon in Lille, France. Machine Learning and Blockchain are now at the center of his attention.


Price: 45 euros

Tickets available on Eventbrite:

-15% discount for MOB members.


About MOBacademy

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Our goal is to empower people and professionals to build the future they want to live in, through agile and skill oriented classes. By MOB, with mobbers, for the community and you.