$BTC

Bitcoin (BTC) is the world’s first and most widely recognized cryptocurrency, introduced in 2009 by an anonymous person or group using the pseudonym Satoshi Nakamoto. It operates on a decentralized, peer-to-peer network without a central authority, using blockchain technology to securely and transparently record transactions.

Bitcoin’s primary innovation lies in solving the double-spending problem without intermediaries. Transactions are validated by a process called mining, where nodes compete to solve complex mathematical puzzles. The first miner to solve the puzzle adds a new block to the blockchain and is rewarded with newly minted BTC and transaction fees.

With a fixed supply cap of 21 million coins, Bitcoin is often referred to as “digital gold” due to its scarcity and use as a store of value. It has become a hedge against inflation in some economies and is increasingly accepted by individuals, businesses, and even some institutions.

Despite price volatility, Bitcoin has spurred a global digital asset revolution and inspired thousands of other cryptocurrencies. It faces ongoing scrutiny from regulators, particularly regarding its use in illicit activities and its environmental impact from mining.

As of 2025, Bitcoin continues to evolve, with developments like the Lightning Network improving scalability and real-world adoption expanding steadily.