Bitcoin
The first decentralized cryptocurrency, created in 2009 with a fixed supply of 21 million coins.
Bitcoin (BTC) runs on a peer-to-peer blockchain network. Transactions are verified by miners and recorded on a public ledger. The supply is capped at 21 million, making it deflationary by design.
Key Properties
- Fixed supply (deflationary)
- Decentralized — no single authority
- Pseudonymous transactions
- 24/7 global transfers
- Secured by proof-of-work mining
FAQ
How do I buy Bitcoin?
Use a regulated exchange like Coinbase or Kraken. You can buy fractional amounts with as little as $1.
Is Bitcoin safe?
The network itself is secure. Risk comes from price volatility and exchange security. Use 2FA and don't invest more than you can lose.