What is Bitcoin?
Digital money that works without banks, run by thousands of computers following the same rules.
In plain words
Bitcoin is money for the internet. No company or government runs it. Instead, thousands of computers around the world keep one shared record of who owns what, and they all check each other's work. New coins appear on a fixed schedule nobody can change. Only 21 million will ever exist. Anyone can send money anywhere, without asking permission.
Why it matters
- The first money whose supply no government or company can inflate.
- Payments cross borders like email: no bank hours, no gatekeepers.
- You can hold it yourself — no account that can be frozen.
Numbers that matter
- 21 million — the most bitcoin that will ever exist.
- 100,000,000 — satoshis in one bitcoin; you can own a fraction.
- ~10 minutes — average time between new blocks.
- 2009 — running since January of that year, with no company behind it.
Not to be confused with
- "Crypto" — Bitcoin is one specific network with fixed rules; most coins copy the form, not the guarantees.
- Blockchain — the record-keeping technique Bitcoin introduced. The tool, not the money.
Go deeper
- The Bitcoin whitepaper — nine pages that started it all.
- Blockchain
- The 21 million cap
Updated 2026-07-29