Launched in 2009 by the pseudonymous Satoshi Nakamoto, Bitcoin runs on a proof-of-work blockchain secured by miners. It is often described as “digital gold” for its scarcity and its role as the market’s reserve asset.
Key takeaways
- Bitcoin was the first widely adopted cryptocurrency, introduced in 2009 as a peer-to-peer digital cash system.
- Its supply is capped at 21 million coins by the protocol, which many holders view as a key feature.
- Bitcoin is highly volatile and is not backed by any government or company, so its value can change sharply.
Bitcoin — frequently asked questions
Who created Bitcoin?
It was introduced by a person or group using the pseudonym Satoshi Nakamoto, whose real identity remains unknown.
Can I buy less than one whole bitcoin?
Yes. Each bitcoin is divisible into very small units, so you can own and transact fractions of a coin.
This definition is educational and not financial advice. Crypto is volatile and high-risk — always do your own research.
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