[Feature] MiniChain v0 - Educational Blockchain Prototype

[anuragShingare30]

Summary

Implement MiniChain v0: a minimal educational blockchain prototype that demonstrates MiniChain's core philosophy of minimality, education, and research.

Proposed Implementation

Core Features:

• Transactions - Ed25519 digital signatures (PyNaCl)
• State Management - Account-based ledger (balances + nonces)
• Block Structure - SHA-256 hashing, linked blocks
• Blockchain - Chain validation, longest-chain rule
• Consensus - Proof-of-Work mining with rewards
• Mempool - Pending transaction pool
• P2P Network - TCP socket-based peer communication
• CLI Interface - Interactive node management interface

Educational Focus:

• Clean, readable Python code
• Minimal dependencies (PyNaCl only)
• Well-documented architecture

File Structure:

Minichain_v0/
├── config.py         - Configuration
├── transaction.py    - Ed25519 transactions
├── state.py          - Account state
├── block.py          - Block structure
├── blockchain.py     - Chain validation
├── mempool.py        - Transaction pool
├── consensus.py      - Proof-of-Work
├── network.py        - P2P networking
├── main.py           - CLI interface
└── minichain         - Launcher script

Progression Path

v0 (Educational) → v1 (Optimized) → v2 (Smart Contracts)

Acceptance Criteria

• Minimal dependencies
• Multi-node P2P functionality
• Mining with rewards
• Interactive CLI
• Documentation and README

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This establishes MiniChain as the educational "MiniSat of blockchains" - minimal, clean, perfect for learning.