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About Bitcoin
Bitcoin is the world's first decentralized cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It enables peer-to-peer electronic cash transactions without intermediaries like banks or governments, operating on a blockchain secured by Proof of Work mining and the SHA-256 cryptographic algorithm.
With a fixed supply cap of 21 million coins and programmatic halvings every four years that reduce miner rewards, Bitcoin is designed as a deflationary digital asset often called "digital gold." Its value stems from solving the double-spending problem without trusted intermediaries, creating the first truly scarce digital asset with censorship resistance and permissionless access that no government, corporation, or individual can control.
Bitcoin operates as a decentralized peer-to-peer network where transactions are recorded on a public ledger called the blockchain, distributed across thousands of computers globally. Transactions are grouped into blocks added approximately every 10 minutes through mining, where specialized computers compete to solve complex mathematical puzzles.
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Frequently asked questions about Bitcoin
What is the current price of Bitcoin?
Bitcoin (BTC) is trading at $75,704 as of September 17, 2026. Prices update throughout the day from market data.
What is the market cap of Bitcoin?
Bitcoin has a market capitalisation of $1,520,930,394,582, which ranks it number 1 among all cryptocurrencies by market cap.
What is the all-time high of Bitcoin?
The all-time high for Bitcoin is $126,080, reached on October 6, 2025. That puts the current price about 40% below its peak.
How many BTC coins are there?
There are roughly 20,085,225 BTC in circulation, out of a maximum supply of 21,000,000 BTC.
Is Bitcoin a good investment?
Whether Bitcoin is a good investment depends on your own goals, time horizon, and risk tolerance, and no one can predict prices with certainty. Over the past year BTC is down about 34%, which shows how volatile it can be. Treat any single data point as one input, not a recommendation, and always do your own research.
Data on this page is for informational purposes only and is not investment advice. Cryptocurrency is volatile and high risk. Always do your own research.