Blockchain Dice

This is a prototype of a blockchain gambling software where players try to guess the results of a virtual dice roll.

Everything is stored in memory so everytime the software is started it starts with empty blockchain.

There are three type of events:

game_initialize

In this step game service chooses a game id and encrypts a random number and sends them to the blockchain.

game_start

In this step players participate to the game by sending random numbers they have chosen to game service which forwards them to the blockchain.

game_end

In this step the dice is rolled by revealing the secret key of the game service and calculating the random number from certain values within the blockchain and publishing the result eventually to the blockchain.

Requirements

• Python 3
• flask
• requests

Running

Blockchain Dice is a prototype of blockchain implementation of the traditional dice game.

• game_service - Flask application which handles business logic
• blockchain - Flask application which wraps a decentralized and immutable data model
• user interface

You need to open a shell for each command and wait for registering to complete before starting another node.

blockchain.py [node's own port] [url to register node with]

You can run as many blockchain.py as you want, just give different node's own port for each one. Note that currently the software will become slower with every added node.

python blockchain.py 5001
python blockchain.py 5002 http://localhost:5001
python blockchain.py 5003 http://localhost:5002
python blockchain.py 5004 http://localhost:5001

game_service.py

python game_service.py

The user interface can be found from http://localhost:5000.