#BTCBelow80K Bitcoin (BTC) is a decentralized digital currency invented in 2008 by an unknown person or group using the name Satoshi Nakamoto. It allows peer-to-peer transactions over a secure, blockchain-based network without the need for intermediaries like banks. Bitcoin uses cryptographic techniques to ensure the integrity and transparency of its transactions. The total supply of BTC is limited to 21 million, which adds scarcity and makes it a store of value for many investors. It is mined through a process called proof-of-work, where powerful computers solve complex puzzles. Bitcoin has influenced the creation of thousands of other cryptocurrencies worldwide.