Distributed Ledger Platform tutorial

The repository contains an implementation of a distributed ledger platform and its client using Python.

This ledger has the following features:

• Possibility of adding multiple nodes to the ledger
• Proof of Work (PoW)
• Conflict resolution between nodes
• Transactions with RSA encryption
• Identification by JWT
• Independent database per node

The blockchain client has the following features:

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

The respository also includes a Postman test collection and environment created in order to test the endpoint.

This code takes as its starting point the source code proposed by Adil Moujahid

Dependencies

• Python 3.7
• Pipfile contains all the dependencies for the code to run

How to run the code

1. To start a blockchain node, go to blockchain folder and execute the command below:

   python server_api.py -p 5000

   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 server_api.py -p 5001

   NOTE: We recommend running 3 blockchain nodes and a client simultaneously.

2. To start the blockchain client, go to blockchain_client folder and execute the command below:

   python client_app.py -p 8080

3. To start with a created ledger execute the command below:

   python initialize.py