Bitcoin
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About Bitcoin
Bitcoin is the world's first and most valuable cryptocurrency, created in 2009 by the pseudonymous developer Satoshi Nakamoto. Operating on a decentralized peer-to-peer network powered by blockchain technology, Bitcoin enables trustless digital transactions without requiring banks or intermediaries. With a fixed supply cap of 21 million coins, Bitcoin is often compared to digital gold as a store of value and hedge against inflation. The network is secured by a proof-of-work consensus mechanism, where miners use computational power to validate transactions and earn newly minted bitcoins. Bitcoin has experienced dramatic price cycles, rising from fractions of a penny to peaks above $100,000. Its adoption has expanded from tech enthusiasts to institutional investors, with companies like MicroStrategy, Tesla, and numerous investment funds holding Bitcoin on their balance sheets. Several countries have approved spot Bitcoin ETFs, and El Salvador adopted it as legal tender in 2021. Despite its volatility, Bitcoin remains the dominant cryptocurrency by market capitalization, typically representing 40-50% of the total crypto market.
Frequently Asked Questions
How many Bitcoins are there?
There will only ever be 21 million Bitcoins. As of 2026, approximately 19.8 million have been mined, with the last Bitcoin expected to be mined around 2140.
Is Bitcoin a good investment?
Bitcoin has been the best-performing asset class over the past decade, but it remains highly volatile. Investors should understand the risks and consider their risk tolerance before investing.
What is Bitcoin mining?
Bitcoin mining is the process of using specialized computers to solve complex mathematical puzzles that validate transactions and add new blocks to the blockchain, earning miners Bitcoin rewards.