A Quantum-Resistant Blockchain for the Post-Quantum Era

QBITCOIN is a quantum-resistant blockchain built from scratch using the Falcon-512 post-quantum signature algorithm. In an era where quantum computing threatens traditional cryptographic systems, QBITCOIN provides a secure platform for digital assets with custom consensus, wallet, and transaction systems - all implemented in Python.

QBITCOIN uses the Falcon-512 signature scheme, a finalist in the NIST post-quantum cryptography standardization process. This provides:

• Quantum Resistance: Protection against attacks from both classical and quantum computers
• Compact Signatures: More efficient than many other post-quantum schemes
• Fast Verification: Maintains high transaction throughput despite quantum security

• Blockchain Structure: Implements a chain of cryptographically linked blocks
• Consensus Mechanism: Custom-built consensus to ensure network agreement
• Transaction Model: UTXO-based system similar to Bitcoin but with quantum-resistant signatures
• P2P Network: Decentralized node discovery and communication
• Storage Layer: Efficient blockchain data persistence and retrieval

QBITCOIN/
├── core/                # Core blockchain implementation
│   ├── block.py         # Block structure and validation
│   ├── blockchain.py    # Chain management and consensus
│   ├── genesis.yaml     # Genesis block configuration
│   ├── consensus/       # Consensus mechanism implementation
│   ├── network/         # P2P networking protocols
│   ├── node/            # Full node implementation
│   └── storage/         # Blockchain data storage
├── crypto/              # Cryptographic primitives
│   └── falcon.py        # Falcon-512 integration
├── scripts/             # Utility scripts
├── tests/               # Test suite
└── utils/               # Helper utilities

• Python 3.9+
• pip (Python package manager)

1. Clone the repository:

   git clone https://github.com/Hamza1s34/Qbitcoin.git
   cd Qbitcoin

2. Create and activate a virtual environment (recommended):

   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate

3. Install dependencies:

   pip install -r requirements.txt

To start a QBITCOIN node:

python  core.node.node_cli.py

Additional configuration options:

• --bootstrap <ip:port>: Connect to a specific bootstrap node
• --wallet <wallet_path>: Specify a wallet file
• --mining: Enable mining
• --debug: Enable debug logging

python scripts/create_wallets.py 

by default this will create 2 wallets in data/wallets

• Quantum-resistant signatures: Future-proof security
• Decentralized consensus: No central authority
• Web wallet: User-friendly interface (in progress)
• API client: For easy integration with other services

Each block contains:

• Header (block hash, previous hash, timestamp, nonce, merkle root)
• Transactions list
• Quantum-resistant signatures

QBITCOIN uses a Proof-of-Work consensus with quantum-resistant features:

• Block time: 1 minutes (average)
• Difficulty adjustment: Every 2016 blocks
• Mining reward: Decreases by half every 210,000 blocks

QBITCOIN addresses use a Base58 encoding with:

• Version prefix byte
• Public key hash (derived from Falcon-512 public key)
• Checksum for error detection

• Core blockchain implementation
• Quantum-resistant signatures
• Basic wallet functionality
• Improved P2P networking
• Advanced mining optimizations
• Mobile wallet development
• Smart contract capabilities

⚠️ IMPORTANT: QBITCOIN is currently in active development and should be considered experimental. It is not yet ready for production use or for storing valuable assets.

This project is licensed under the MIT License - see the LICENSE file for details.

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Project Link: https://github.com/Hamza1s34/Qbitcoin Email: [email protected] whatsapp: +92 3195787106