Bitcoin is based on blockchain technology. Transactions are recorded in blocks, which are then linked to each other using cryptographic methods. 
Bitcoin has a number of features that distinguish it from traditional currencies: 
* Decentralization: Bitcoin is not controlled by any government or central bank. 
* Transparency: All transactions on the Bitcoin network are visible to all network participants. 
* Limited emission: Only 21 million Bitcoins will ever be issued. 
Bitcoin is used for a variety of purposes, including paying for goods and services, investing, and saving. However, its use is limited due to high volatility and insufficient regulation. 
The prospects for Bitcoin depend on many factors, including the development of blockchain technology, regulation of cryptocurrencies, and the adoption of Bitcoin by a wide audience. Despite the risks, Bitcoin continues to attract the attention of investors and developers who see the potential of this technology.