Introduction
This hands-on guide teaches you how to code a functional blockchain using Python. Want to understand blockchain's underlying principles? Start by rolling up your sleeves and writing code!
Key Features
Build a Blockchain from Scratch in Python
- Learn wallet creation, transaction signing, and node broadcasting through step-by-step implementation.
- Understand the technical foundations required for blockchain development.
Applied Cryptography
- Explore Merkle Trees, asymmetric encryption, and zero-knowledge proofs.
- Discover how cryptography enables identity verification in decentralized networks.
Mining Deep Dive
- Enter the world of miners: analyze block-withholding attacks and mining pool strategies.
P2P Networking Fundamentals
- Learn how decentralized networks achieve consensus and handle temporary forks, soft forks, and hard forks.
Real-World Blockchains: Bitcoin & Ethereum
- Compare architectures of BTC and ETH.
- Trace their evolution and technical milestones.
Decentralized Finance (DeFi)
- Why is ERC20 revolutionary?
- How do lending protocols work?
- Risks of oracle manipulation and AMM mechanisms.
Core Concepts Explained
Consensus & Forks
- Temporary Forks: Natural delays in block propagation.
- Soft Forks: Backward-compatible protocol upgrades.
- Hard Forks: Non-negotiable chain splits (e.g., Bitcoin vs. Bitcoin Cash).
Miner Strategies
- Block-Withholding Attacks: Sabotaging pool rewards.
- Miner Extractable Value (MEV): Exploiting transaction ordering.
DeFi Mechanisms
- Oracle Risks: Price feed vulnerabilities.
- Flash Loan Attacks: Arbitrage without collateral.
FAQs
❓ Can I run this blockchain without mining?
Yes! The book covers both Proof-of-Work (PoW) and lightweight alternatives.
❓ Why Python for blockchain development?
Python balances readability with cryptographic library support (e.g., pycryptodome).
❓ What’s the difference between BTC and ETH blockchains?
BTC focuses on peer-to-peer cash; ETH enables smart contracts and DeFi.
❓ Are Merkle Trees essential?
Yes! They efficiently verify transaction integrity without storing entire blocks.
👉 Ready to dive deeper? Explore advanced blockchain tools here
👉 Master DeFi protocols with our expert guides
Why This Book?
Adapted from the 11th iT邦幫忙鐵人賽 (Ironman Contest) winning series, this is the first technical guide to bridge theory and practice by rebuilding a blockchain line-by-line.
“What I cannot create, I do not understand.” — Richard Feynman