Bitcoin (₿) is the world's first decentralized cryptocurrency, created in 2008 by an unknown person or group using the pseudonym Satoshi Nakamoto1. It operates on a peer-to-peer network without the need for intermediaries, using blockchain technology to record all transactions13.

Key features of Bitcoin include:

1. Decentralization: No central authority controls Bitcoin, making it resistant to manipulation by governments or financial institutions1.

2. Limited supply: There will only ever be 21 million bitcoins in existence, with the last one expected to be mined around 21402.

3. Pseudonymity: While not completely anonymous, Bitcoin transactions are pseudonymous, providing a degree of privacy1.

4. Global accessibility: Bitcoin can be sent anywhere in the world quickly and with low fees3.

5. Divisibility: One bitcoin can be divided into 100 million smaller units called satoshis1.

As of January 29, 2025, Bitcoin's price stands at approximately $622,000, with a market capitalization of over $12 trillion24. This represents a significant increase from previous years, with the cryptocurrency reaching $100,000 for the first time in December 20241.

Bitcoin has gained recognition as both a medium of exchange and a store of value, often compared to digital gold1. However, its price remains highly volatile, and opinions on its long-term viability as a currency or investment are divided among economists and financial experts1.

The adoption of Bitcoin has increased over the years, with El Salvador becoming the first country to adopt it as legal tender in 20211. As of 2023, it was estimated that Bitcoin had about 81.7 million users globally1.

Despite its growing popularity, Bitcoin faces challenges such as regulatory scrutiny, environmental concerns due to its energy-intensive mining process, and its use in illegal activities1. Nevertheless, it continues to be a significant force in the world of finance and technology, driving innovation in areas such as blockchain and digital payments.