A basic Python implementation of a blockchain that includes block creation, hashing, proof-of-work, and chain validation.

• Add transactions and mine blocks
• SHA-256 hashing for security
• Detect tampering with chain validation

• Python 3.x

1. Clone the repository:

   git clone https://github.com/CodeTitan7/simple-blockchain.git  
   cd simple-blockchain  

2. Run the script:

   python blockchain.py  

1. The genesis block is created automatically.
2. Transactions are added and new blocks are mined.
3. The blockchain is displayed and validated.

• The is_valid_chain method ensures integrity.
• If tampering occurs, validation flags inconsistencies.