Introduction to Blockchain

A practical introduction to blockchain for non-technical professionals. Understand the problems blockchain was created to solve, how decentralized systems differ from traditional models, and how this technology is shaping the future of coordination, ownership, and digital infrastructure.
~1 hour
Free Access
 Beginners

Skills you will gain

  • Identify trust problems in centralised systems
  • Distinguish ownership from access online
  • Explain why decentralisation matters
  • Evaluate the core properties of decentralised systems
  • Understand blockchain as a trust layer
  • Recognise how provenance counters synthetic content

Modules in this course

01
Why Blockchain Exists
02
How Blockchain Works
03
Core Goals of Blockchain
04
Cryptography without the Math
05
Tokens, Incentives, and Economic Security
06
Smart Contracts
07
DeFi, DEXs, and Global Payments
Coming soon
08
DAOs, Identity, Supply Chain, NFTs
Coming soon
09
Governance in Decentralised Systems
10
Privacy with Zero-Knowledge Proofs
Coming soon
11
The Multichain Future and Case Studies

Why take this course?

  • Build practical knowledge with a clear learning structure
  • Learn from people building the technology
  • Study at your own pace, from anywhere
  • Strengthen your foundation for what comes next

1/13

Radha Dasari
Web3 & blockchain Education Expert
Gavin Wood
Polkadot vision and high-level architecture
Chen Da Liu Zhang
Cryptography — digital signatures and cryptographic keys
Andrew Burger
Hash functions, Merkle trees, and the evolution of blockchains
Alexander Popiak
Blockchain architecture and state machines
Thibaut Sardan
Consensus and blockchain fundamentals
Maciej Kris Zyszkiewicz
System chains and hybrid consensus
Jonas Gehrlein
Tokenomics and economic incentives
Kian Paimani
Staking, NPoS, and interoperability
Shawn Tabrizi
Smart contracts and the Polkadot SDK
Complete all 11 modules to finish this course