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1 BTC = 100,000,000 satoshis — the smallest unit, named after Bitcoin's creator. There are more sats in a single Bitcoin than cents in $10 million.
Source: Bitcoin Protocol
On May 22, 2010, Laszlo Hanyecz paid 10,000 BTC for two Papa John's pizzas. It was the first real-world Bitcoin transaction.
Source: bitcointalk.org, May 2010
Bitcoin's code caps the total supply at exactly 21,000,000. No central bank, no CEO, no government can print more. The last Bitcoin will be mined around the year 2140.
Source: Bitcoin Whitepaper, Section 4
An estimated 3–4 million Bitcoin are permanently lost — forgotten passwords, discarded hard drives, sent to unrecoverable addresses. They still count toward the 21 million cap, making the real supply even scarcer.
Source: Chainalysis Research, 2020
Satoshi embedded a newspaper headline in Bitcoin's very first block: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks." A timestamp — and perhaps a statement.
Source: Block 0, Bitcoin Blockchain
A new Bitcoin block is mined roughly every 10 minutes — 24/7, 365 days a year. No holidays, no maintenance windows, no lunch breaks. The network has been running non-stop since January 3, 2009.
Source: Bitcoin Protocol
Bitcoin has no company behind it, no headquarters, no board of directors, and no customer support. It runs on code maintained by hundreds of open-source contributors across the world.
Source: github.com/bitcoin/bitcoin
Bitcoin miners collectively use more energy than some countries — and that's the point. That energy is what makes the network practically impossible to attack. It's not waste, it's a wall.
Source: Cambridge Centre for Alternative Finance
Prices from CoinGecko. Updated every 60 seconds. Not financial advice.