Satoshi Nakamoto is the name used by the unknown person or group who created Bitcoin. In 2008, Satoshi published a paper called Bitcoin: A Peer-to-Peer Electronic Cash System, which explained how a digital currency could work without a central authority like a bank. The next year, in 2009, Satoshi released the first version of Bitcoin software and mined the first block of the Bitcoin blockchain, known as the "genesis block."

No one knows who Satoshi really is. The name might be a pseudonym, and it’s unclear if it's one person or a group of people. Satoshi communicated only through emails and online forums and never revealed personal details. By 2011, Satoshi had stopped posting online and handed control of the project to other developers. Since then, there has been no confirmed communication from them.

Satoshi is believed to own around one million bitcoins, which have mostly never been moved. This large amount could influence the Bitcoin market, but it remains untouched.

The mystery around Satoshi’s identity continues to be one of the most talked-about topics in the cryptocurrency world. Whether a person or a team, Satoshi Nakamoto changed how people think about money and trust in digital systems.