Guide

Bitcoin: A Short History and How It Works

Bottom line: the original cryptocurrency

Bitcoin is the first and best-known cryptocurrency, introduced in a 2008 whitepaper by the pseudonymous "Satoshi Nakamoto". It runs on a blockchain with no central administrator.

A physical Bitcoin novelty coin (illustrative)
Photo: Gage Skidmore / CC BY-SA 3.0

Key takeaways

Bitcoin launched in 2009, has a fixed supply of 21 million coins, and halves its new issuance roughly every four years. It is mainly seen as a store of value ("digital gold").

A short timeline

  • 2008 — Whitepaper published
  • 2009 — The first block (genesis) is mined
  • 2010 — First real-world purchase (the famous "pizza" transaction)
  • 2024 — Spot ETFs approved in the US

Why people value it

  • Fixed supply (21 million) creates scarcity
  • Decentralized — no single controller
  • Secure — backed by a large mining network (mining secures the chain)

Volatile

Bitcoin's price has swung dramatically. Past gains do not predict the future.

Sources

  • Bitcoin whitepaper: https://bitcoin.org/bitcoin.pdf

Not financial advice

This article is for information only and is not investment advice. Crypto assets are volatile and carry risks including hacking. Do your own research and only use money you can afford to lose.

空(Sora)
  • 暗号資産・ブロックチェーン
  • 初心者向け解説 / Beginner-friendly
  • 中立・出典重視 / Source-backed

暗号資産・ブロックチェーンの初心者向け解説を担当する編集者です。中立性と一次情報(出典)を重視し、やさしさと正確さの両立を心がけています。投資の勧誘や助言は行いません。 A crypto & blockchain editor focused on beginner-friendly, source-backed explainers. Neutral, never financial advice.

This article is informational only and is not financial, investment, or trading advice. Prices are reference snapshots and may be outdated. Always do your own research.