Bitcoin Fundamentals and Developing Your Own Blockchain

Big Data & Algorithmic Business

9:10 – 17:00 Uhr
ETH Zürich
Max. Teilnehmer: 12


There is a lot of hype about blockchain and cryptocurrencies, but do we know how they really work and why they are built in a certain way?

The first blockchain was born with Bitcoin and in this workshop we will learn about the building blocks and how all piecies get together to provide a secure and decentralized payment system.

You will have the chance to develop your own version of blockchain based on the bitcoin paradigm in order to get a deeper understanding of its data structures, p2p network, algorithms and security aspects.

This knwoledge is preparatory to developing for other blockchains as well, like Ethereum, etc.


Introduction to Blockchain and Cryptocurrencies

  • Cryptographic Hash Functions
  • Hash Pointers and Data Structures
  • Digital Signatures
  • Public Keys as Identities


  • Create a coin
  • Create transactions
  • Check transactions validity

How Bitcoin Achieves Decentralization

  • Centralization vs Decentralization
  • Distributed Consensus
  • Consensus without Identity
  • Incentives and Proof of Work

Mechanics of Bitcoin

  • Bitcoin Transactions
  • Bitcoin Scripts
  • Application of Bitcoin Scripts
  • Bitcoin Blocks
  • The Bitcoin Network
  • Limitations and Improvements


  • Build simple Blockchain blocks
  • Build complex Blockchain blocks


Blockchains are complex system that combine crypography, p2p networks, sophisticated data structures and algorithms.

The goal of the course is to get a deep understanding the operation of a blockchain and its building blocks, which sets the basis for working with blockchains and developing on them.

In order to keep focus the workshop will be oriented on Bitcoin and Cryptocurrencies.



Software developers that are curious about the behind the scenes of cryptocurrencies and blockchain.

The workshop will be held in English, questions can be answered in German whenever necessary.


Experience in software development, ideally in Java.


  • Please bring your own laptop.
  • For the hands-on lab we will use Java. Please make sure to have installed JVM and a Java IDE, i.e. Eclipse.


Ilda Pogaci


Ilda Pogaci, ex-IBMer is a Digital Innovation Specialist with passion for new technologies and their business implementation. Her latest interest is around blockchain and cryptocurrencies, where she is working in creating a payment solution that bridges the crypto and the real world. Ilda Pogaci has a Master Degree in Computer Science from the University of Milan and has recently won the Thomson Reuters Prize at the Hack'n'Lead hackathon in Zurich for a blockchain-based solution that incentivizes the spread of trustworthy news in contrast to fake news.