BTC, short for **Bitcoin**, is a decentralized digital currency that operates on a peer-to-peer network, eliminating the need for intermediaries like banks or governments. It was introduced in 2009 by an unknown individual or group using the pseudonym **Satoshi Nakamoto**. 

Key facts about BTC:  

1. **Blockchain Technology**: Transactions are recorded on a public, tamper-proof ledger called the blockchain.  
2. **Limited Supply**: Only 21 million BTC will ever exist, creating scarcity.  
3. **Use Cases**: It's used as a store of value, medium of exchange, and in decentralized financial systems.  
4. **Mining**: Bitcoin is secured through a process called mining, where computational power is used to validate transactions and secure the network.  
5. **Volatility**: BTC is known for its price volatility, influenced by market demand, regulatory news, and technological advancements.

Are you interested in its current market price, technical details, or anything else?