What Is Cryptocurrency? The Complete 2026 Guide
Digital scarcity, decentralisation, and the central idea that holding crypto means controlling a key rather than a bank balance.
Learning cluster
Crypto Foundations
Understand what cryptocurrency is, how public blockchains work, and how to approach a first purchase safely—starting from zero.
Why this cluster matters
Start with the concepts that make the rest of Web3 click.
Follow the sequence or open the guide you need now. Every article links concepts to practical checks, common failure modes, and a short knowledge check.
Learning path
View in library- 01Beginner · 15 minWhat Is Cryptocurrency? The Complete 2026 GuideDigital scarcity, decentralisation, and the central idea that holding crypto means controlling a key rather than a bank balance.
- 02Beginner · 12 minWhat Is a Blockchain and How Does It Work?Blocks, chains, and consensus explained through a shared-ledger model and the limits of immutability.
- 03Intermediate · 11 minMulti-Role Account AccessShare wallet responsibility with family or colleagues without collapsing control into one credential.
- 04Beginner · 14 minHow to Buy Your First Crypto SafelyThe first-purchase path, from vetting an exchange to moving funds into custody you understand.
All Crypto Foundations guides
What Is a Blockchain and How Does It Work?
Blocks, chains, and consensus explained through a shared-ledger model and the limits of immutability.
Multi-Role Account Access
Share wallet responsibility with family or colleagues without collapsing control into one credential.
How to Buy Your First Crypto Safely
The first-purchase path, from vetting an exchange to moving funds into custody you understand.