BlockchainImplementation

A simple implementation of Blockchain in python

How to:

Download the .py file into a folder named 'Code'.
Download .sh file into the folder in which 'Code' is present.
run .sh file on terminal by following commands one by one with the port number.
./linknodes.sh 5000
./linknodes.sh 5001
./linknodes.sh 5002
./linknodes.sh 5003
(This will create 4 folders, one for each node, with the .py file saved & synchronized among all)
open Code5000 folder in terminal and run the .py file in it with the node number. Keep the port_number same as that in the folder name and append -m if you want to start mining at that node. If port_number is not specified, the code runs at 5000. python3 blockchain.py -p <port_number> -m
Do the same thing with other nodes as well. You will notice that each node shows if the other nodes are running.
Go to localhost:5000/blockchain.json to check the data at the node. You can verify same data exists across all the nodes.

Requirements

python3
flask
requests
hashlib
( if you get a ModuleNotFound error, just run pip3 install <module name> )

To Do

fix hash errors