Hi you,
Currently everyone knows bitcoin as the official currency

Bitcoin is a revolutionary digital currency, known as a cryptocurrency, that operates independently of a central bank. Introduced in 2009 by an anonymous entity under the pseudonym Satoshi Nakamoto, it's built on a technology called blockchain. This technology ensures secure and transparent transactions, allowing users to send and receive bitcoins without the need for intermediaries. Unlike traditional currencies, Bitcoin is decentralized, meaning no single entity controls it. Its limited supply, capped at 21 million bitcoins, and its method of creation, known as mining, make it a unique form of digital asset. As a pioneer in the world of cryptocurrencies, Bitcoin has sparked a plethora of debates and has paved the way for the development of numerous other digital currencies. Its value can be highly volatile, making it both a potentially lucrative investment and a risk. Despite its controversies, Bitcoin has significantly influenced the global financial landscape and continues to shape the future of digital transactions.