• Source Code for my blog post: A Practical Introduction to Blockchain with Python

The github repository contains a basic implementation of a blockchain and its client using Python. This blockchain has the following features:

• Possibility of adding multiple nodes to the blockchain
• Proof of Work (PoW)
• Simple conflict resolution between nodes
• Transactions with RSA encryption

The blockchain client has the following features:

• Wallets generation using Public/Private key encryption (based on RSA algorithm)
• Generation of transactions with RSA encryption

This github repository also contains 2 dashboards:

• "Blockchain Frontend" for miners
• "Blockchain Client" for users to generate wallets and send coins

• Works with Python 3.6
• Anaconda's Python distribution contains all the dependencies for the code to run.

1. To start a blockchain node, go to blockchain folder and execute the command below: python blockchain.py -p 5000
2. You can add a new node to blockchain by executing the same command and specifying a port that is not already used. For example, python blockchain.py -p 5001
3. TO start the blockchain client, go to blockchain_client folder and execute the command below: python blockchain_client.py -p 8080
4. You can access the blockchain frontend and blockchain client dashboards from your browser by going to localhost:5000 and localhost:8080