BlockchainImplementation

A simple implementation of Blockchain in python

How to:

1. Download the .py file into a folder named 'Code'.
2. Download .sh file into the folder in which 'Code' is present.
3. 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)
4. 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
5. Do the same thing with other nodes as well. You will notice that each node shows if the other nodes are running.
6. 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