Bitcoin is the world's first decentralized cryptocurrency, created by Satoshi Nakamoto in 2009, launching the blockchain revolution.
Bitcoin (BTC) is the world's first and largest cryptocurrency by market capitalization, created by the pseudonymous Satoshi Nakamoto in 2009. It introduced blockchain technology and the concept of decentralized digital money, fundamentally changing how we think about finance and value transfer.
Bitcoin operates on a peer-to-peer network where transactions are verified by network nodes through cryptography and recorded on a public distributed ledger called a blockchain. Unlike traditional banking, no central authority controls Bitcoin — the network is maintained by thousands of computers (nodes) worldwide.
New bitcoins are created through a process called mining, where powerful computers solve complex mathematical puzzles to validate transactions and add new blocks to the blockchain. Miners are rewarded with newly minted BTC and transaction fees.
Only 21 million bitcoins will ever exist. This fixed supply makes Bitcoin inherently deflationary, unlike fiat currencies that can be printed indefinitely. As of 2026, approximately 19.8 million BTC have been mined.
Every 210,000 blocks (approximately every four years), the mining reward is cut in half — an event called "halving." The most recent halving occurred in April 2024, reducing the block reward from 6.25 BTC to 3.125 BTC. Halvings historically correlate with significant price appreciation in the following 12-18 months.
Bitcoin is often called "digital gold" because it shares key properties with physical gold: scarcity, durability, portability, and divisibility. However, Bitcoin surpasses gold in divisibility (each BTC can be divided into 100 million satoshis), portability (transferable globally in minutes), and verifiability (anyone can audit the supply).
Institutional adoption has accelerated since 2024, with Bitcoin ETFs making it accessible to traditional investors. Major corporations and sovereign wealth funds now hold Bitcoin as a treasury reserve asset.
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Bitcoin is the world's first decentralized cryptocurrency, created by Satoshi Nakamoto in 2009. It uses blockchain technology for peer-to-peer transactions with a total supply cap of 21 million.
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