Bitcoin is a decentralized digital currency, created in 2009 by an unknown person using the alias Satoshi Nakamoto. It allows for peer-to-peer transactions without the need for a central authority. Bitcoin transactions are recorded on a public ledger called the blockchain.

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This post provides a concise explanation of Bitcoin, highlighting its decentralized nature and the role of blockchain technology. It serves as a good introduction to the concept for those new to the cryptocurrency space.