Bitcoin is a decentralized digital currency introduced by Satoshi Nakamoto in 2009. Based on blockchain technology, Bitcoin enables peer-to-peer transactions without intermediaries such as banks. This system uses cryptography to maintain the security and transparency of every transaction. The amount of Bitcoin is capped at twenty-one million coins, creating scarcity that affects its value. Many people view Bitcoin as both an investment asset and a hedge against inflation. However, price volatility and uneven regulation are the main challenges. In the future, Bitcoin has the potential to transform the global financial system and the way humans store and transfer value digitally and across countries quickly, efficiently, securely, and transparently.