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How Blockchain Works

Understand distributed ledgers, consensus mechanisms, and why blockchain changes everything.

ConsensusProof of WorkProof of StakeNodes
Duration
4h 10min
Lessons
12 lessons
Certificate
On completion

Curriculum

1Distributed Systems3 lessons
  • What is a ledger?Preview
  • Centralised vs decentralised
  • The Byzantine problem
2Consensus Mechanisms3 lessons
  • Proof of Work
  • Proof of Stake
  • Other consensus models
3Chain Architecture3 lessons
  • Blocks and transactions
  • Merkle trees
  • Hash functions
4Real Applications3 lessons
  • Smart contract platforms
  • Layer 2 networks
  • Cross-chain bridges
Free
for Beginner tier

📅 Milestone 2 — Full lesson content, progress tracking, and enrolment activate at v0.2.0.

  • 4h 10min total
  • 12 lessons
  • Certificate on completion
  • Community support