This is the source code for my post on Building a Blockchain.

1. Make sure Python 3.6+ is installed.
2. Install pipenv.

$ pip install pipenv 

3. Create a virtual environment and specify the Python version to use.

$ pipenv --python=python3.6

4. Install requirements.

$ pipenv install 

5. Run the server:
   • $ pipenv run python blockchain.py
   • $ pipenv run python blockchain.py -p 5001
   • $ pipenv run python blockchain.py --port 5002

Another option for running this blockchain program is to use Docker. Follow the instructions below to create a local Docker container:

1. Clone this repository
2. Build the docker container

$ docker build -t blockchain .

3. Run the container

$ docker run --rm -p 80:5000 blockchain

4. To add more instances, vary the public port number before the colon:

$ docker run --rm -p 81:5000 blockchain
$ docker run --rm -p 82:5000 blockchain
$ docker run --rm -p 83:5000 blockchain

Contributions are welcome! Please feel free to submit a Pull Request.