Introduction Layer 2 Concept Payment Channels Channel Lifecycle Routing & HTLCs Network Topology Security Model Liquidity Management Limitations & Trade-offs

Introduction Bitcoin Evolution SegWit Deep Dive Taproot Deep Dive Efficiency Analysis Privacy Improvements Security Guarantees Adoption Metrics Future Upgrades Conclusion

Introduction ERC-20 Fundamentals The approve() Function Unlimited Approvals Risk Draining Attack Vectors Checking Your Allowances Step-by-Step Revocation Prevention Best Practices

Introduction The Quantum Threat Shor’s Algorithm Vulnerability Analysis Quantum Timeline PQC Fundamentals PQC Algorithms Blockchain Migration Wallet Evolution Implementation Strategy

Introduction Digital Signatures ECDSA Mathematics Signature Process Signature Verification The Blind-Signing Problem Attack Vectors Hardware Wallet Protection Transaction Parsing Security

Introduction Consensus Fundamentals Proof of Work Deep Dive Proof of Stake Deep Dive Security Comparison Energy Efficiency Centralization Analysis Economic

Introduction Hash Function Fundamentals Essential Properties SHA-256 Deep Dive Keccak-256 Deep Dive SHA-256 vs Keccak-256 Blockchain Applications Address Generation Data

Introduction The Blockchain Trilemma Scalability Constraints Security Requirements Decentralization Necessity Layer 1 Limitations Layer 2 Solutions Rollup Technology L2 Comparison

Introduction Single-Sig vs Multi-Sig How Multisig Works Threshold Schemes Technical Implementation Security Models Enterprise Use Cases Trade-offs & Limitations Best

Introduction Transaction Lifecycle Anatomy of a Transaction Gas Fees Explained EIP-1559 Fee Market Confirmation & Finality Transaction Failures Optimization Strategies

Introduction: The Human Factor Mistake 1: Digital Seed Storage Mistake 2: Phishing Attacks Mistake 3: Weak Passwords Mistake 4: Not

Cryptographic Foundation Private & Public Keys Public Key Cryptography Address Generation Process Never Share Private Keys Seed Phrases and HD

Introduction What is Blockchain? Blocks and Chains Consensus Mechanisms Why Decentralization Security Implications Conclusion BLOCKCHAIN FUNDAMENTALS Blockchain Basics: How Cryptocurrency