Bitcoin is a cryptocurrency, a decentralized digital currency that operates without the intervention of a central authority such as a bank or government. Created in 2009 by a person or group under the pseudonym Satoshi Nakamoto, Bitcoin is based on a technology called the blockchain. The blockchain is a distributed public register that records all transactions transparently and securely.
Bitcoin enables peer-to-peer transactions, which means that two people can exchange bitcoins directly without an intermediary. Transactions are verified by miners, individuals or groups who use computing power to solve complex algorithms. In exchange for their work, miners are rewarded with bitcoins.
One of the main characteristics of Bitcoin is its limited quantity: there will never be more than 21 million Bitcoins in circulation, giving it a rarity that can increase its value. Although volatile, Bitcoin is often considered a store of value or a form of digital gold, in addition to being used for payments and investments.
Its decentralized, secure and international nature makes it a unique asset in the financial world.