Blockchain Course Index — Dataplexa

Blockchain
Course Index

45 Lessons · 5 Levels

Complete blockchain fundamentals covering cryptography, consensus mechanisms and scalability — from distributed ledger basics to DeFi, NFTs and enterprise blockchain use cases.

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45Lessons

5Levels

1Projects

FreeAccess

Level I Blockchain Foundations Lessons 1–8

Introduction to Blockchain

Why Blockchain Was Created

Centralized vs Decentralized Systems

Distributed Ledger Technology

What is a Block

What is a Blockchain

Immutability and Transparency

Types of Blockchains

Level II Cryptography & Transactions Lessons 9–16

Cryptography in Blockchain

Hash Functions and SHA-256

Public and Private Key Cryptography

Digital Signatures

Wallets and Key Management

Blockchain Transactions Explained

Transaction Lifecycle

Level III Architecture & Networking Lessons 17–25

Blockchain Data Structure

Block Header and Block Body

Nodes and Peers

Blockchain Networking

Mempool and Transaction Propagation

Forks in Blockchain

Soft Fork vs Hard Fork

Blockchain Finality

Synchronization in Blockchain

Level IV Consensus, Economics & Security Lessons 26–38

Why Consensus is Required

Consensus Mechanisms Overview

Validators and Staking

Byzantine Fault Tolerance

Consensus Security Risks

Incentive Models in Blockchain

Transaction Fees and Gas

Blockchain Scalability Problem

Blockchain Trilemma

Layer 1 and Layer 2 Solutions

Blockchain Attacks

Level V Use Cases, Tools & Career Lessons 39–45

Blockchain Use Cases

NFTs and Gaming

Enterprise Blockchain Concepts

Blockchain Tools and Explorers

Blockchain Career Roadmap

Real-World Blockchain Case Study

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Blockchain Course Index

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