In October 2008, months before the emergence of Bitcoin, a user named Satoshi Nakamoto published an introductory article entitled "Bitcoin: A Peer-to-Peer Electronic Cash System." The article provided a detailed description of how a secure and decentralized protocol based on cryptography could operate. Although Nakamoto's true identity is unknown, the username "Satoshi Nakamoto" is widely recognized as the creator of Bitcoin worldwide. Prior to Bitcoin's rise to popularity, Satoshi Nakamoto was already a well-known name among cryptography enthusiasts, including hackers.