$BTC Here's a short note on Bitcoin (BTC):

Bitcoin (BTC) is the first and most well-known cryptocurrency, introduced in 2009 by an anonymous person or group using the pseudonym Satoshi Nakamoto. It is a decentralized digital currency, meaning it operates without a central authority like a bank or government.

Bitcoin uses blockchain technology, a public ledger that records all transactions. It is powered by a network of computers (called nodes) that verify and record transactions through a process called mining.

Key features of Bitcoin:

Limited Supply: Only 21 million BTC will ever exist.

Decentralized: Not controlled by any central authority.

Peer-to-Peer: Allows users to send and receive funds directly.

Secure and Transparent: Uses cryptography and a public ledger to ensure transaction integrity.

Bitcoin is used for various purposes like investment, online payments, and as a hedge against inflation. However, its price is highly volatile, and trading or investing in it involves risk.

Let me know if you want a more detailed note or one focused on trading, mining, or its technology.