What is Cryptocurrency?
Cryptocurrency is a digital asset that uses cryptography to control issuance and transfers, typically on a public blockchain. Examples include Bitcoin, Ether, and many others. Unlike traditional digital money, cryptocurrencies do not require a trusted issuer.
Why Cryptocurrency matters
Understanding Cryptocurrency is part of building a solid mental model of how Bitcoin, blockchain and Web3 systems actually work. Concepts in the General category sit at the foundation of the broader stack — get them right and the rest is far easier.
Learn this interactively
Reading the definition is a start. ZeroToBlock teaches concepts like Cryptocurrency through hands-on, browser-based simulations. Build the mental model by actually using it:
- Bitcoin 101 — interactive fundamentals course
- Bitcoin Proof of Work — mining, hashing and consensus
- Browse all interactive blockchain courses
More general terms
- Altcoin — Any cryptocurrency that is not Bitcoin.
- Stablecoin — A cryptocurrency designed to track a stable reference value.
- CEX (Centralized Exchange) — A company-operated crypto trading venue.
- Whitepaper — The technical document describing a protocol's design.
- KYC (Know Your Customer) — Identity verification required by regulated services.
- AML (Anti-Money Laundering) — Regulations preventing illicit financial flows.
- Tokenomics — The economic design of a cryptocurrency.
- Market Capitalization — Circulating supply × price.
Keep exploring
Continue with the full blockchain glossary — 136 terms in total — or read the developer blog and FAQ for deeper context.