brainstate

discover · compare · collections · requirements · contribute · feed · watching · stats · help with your tokens

dvf/blockchain · source

Snapshot 0 · 2026-11-04T12:47:25Z · C# · MIT

Content fingerprint9de548c76c8b04da48c43e4fc3a95d8ed5a460181471ad050a3e11e57fa8403b

GitHub description at capture

A simple Blockchain in Python

README at capture

# Are you looking for the source code for my book?

Please find it here: https://github.com/dvf/blockchain-book

The book is available on Amazon: https://www.amazon.com/Learn-Blockchain-Building-Understanding-Cryptocurrencies/dp/1484251709

# Learn Blockchains by Building One

[![Build Status](https://travis-ci.org/dvf/blockchain.svg?branch=master)](https://travis-ci.org/dvf/blockchain)

This is the source code for my post on [Building a Blockchain](https://medium.com/p/117428612f46). 

## Installation

1. Make sure [Python 3.6+](https://www.python.org/downloads/) is installed. 
2. Install [pipenv](https://github.com/kennethreitz/pipenv). 

```
$ pip install pipenv 
```
3. Install requirements  
```
$ pipenv install 
``` 

4. Run the server:
    * `$ pipenv run python blockchain.py` 
    * `$ pipenv run python blockchain.py -p 5001`
    * `$ pipenv run python blockchain.py --port 5002`
    
## Docker

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
```

## Installation (C# Implementation)

1. Install a free copy of Visual Studio IDE (Community Edition):
https://www.visualstudio.com/vs/

2. Once installed, open the solution file (BlockChain.sln) using the File > Open > Project/Solution menu options within Visual Studio.

3. From within the "Solution Explorer", right click the BlockChain.Console project and select the "Set As Startup Project" option.

4. Click the "Start" button, or hit F5 to run. The program executes in a console window, and is controlled via HTTP with the same commands as the Python version.


## Contributing

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