This work is based on adilmoujahid/blockchain-python-tutorial.

Compared with the original one, we now introduce:

• PKC (coin name).
• Constant wealth (1e8 coin in total).
• Setting miner's information.
• Balance check before every transaction.
• Transaction failure alert.
• Dynamic difficulty update every 2 weeks.
• SSL support.
• Save running states.

(Risky, not recommended) If you need SSL support, add certificate(inside certificates folder) to your system(cert.pem) or your browser(cert.p12).

In order to run this code, you'll need:

• python 3
• pycrypto

To install the pycrypto:

pip instal pycrypto

To run blockchain node:

python blockchain/blockchain.py -p 5000

which we also support restoring to previous state with -r path\to\file.pkl. The default file of state is stored in states\blockchain.pkl.

To run blockchain client:

python blockchain_client/blockchain_client.py -p 8080