Bitcoin

A digital currency that operates free of any central control or the oversight of banks/governments.

First released	2009
Developed by	A person or a group of people known as Satoshi Nakamoto
Open-source	Yes

Bitcoin was the first-ever cryptocurrency created and is the most renowned.
The first commercial bitcoin transaction was a pizza purchase.
There’s a limit to how many bitcoins can exist in the market: 21 million. As of January 2022, over 18 million bitcoins have already been mined.

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