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**BTC** usually refers to **Bitcoin**, the world's first digital currency (cryptocurrency).
Bitcoin was created in 2009 by an anonymous person or group using the pseudonym **Satoshi Nakamoto**.
Simply put, Bitcoin is **digital money that is not controlled by banks or governments**. Its system runs on technology called **blockchain** — a kind of digital transaction ledger distributed across many computers.
Some basic facts about BTC:
* **Code/Ticker:** BTC
* **Function:** Can be used to store value, transfer money, or trade/invest.
* **Decentralization:** No single company or bank controls it.

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