What is Bitcoin?
Bitcoin (BTC) is the world's first and largest cryptocurrency by market cap, created in 2009 by the pseudonymous Satoshi Nakamoto as a decentralized digital currency.
What is Bitcoin?
Bitcoin is a decentralized digital currency that enables peer-to-peer transactions without a central authority like a bank or government. It was introduced in 2008 via the Bitcoin whitepaper by Satoshi Nakamoto and launched in January 2009.
How Bitcoin Works
Bitcoin runs on a proof-of-work blockchain. Miners compete to solve complex mathematical puzzles to add new blocks and earn freshly minted BTC as a reward. The total supply is capped at 21 million coins.
Bitcoin Halving
Every 210,000 blocks (~4 years), the block reward is cut in half — an event called the "halving." This built-in scarcity mechanism is one reason many view Bitcoin as "digital gold."
Why Bitcoin Matters
Bitcoin introduced the concept of trustless, permissionless money. It remains the dominant store of value in crypto and the most widely accepted digital asset.