Bitcoin is a decentralized digital currency that was created in 2009 by an individual or group using the pseudonym Satoshi Nakamoto. It is based on blockchain technology, allowing users to perform peer-to-peer transactions without the need for a central authority like a bank.

Key features of Bitcoin include:

 1. Decentralization: It is not controlled by any central bank or government.
 2. Scarcity: The total supply is limited to 21 million Bitcoins.
 3. Immutability: Once a transaction is recorded on the blockchain, it cannot be altered.
 4. Transparency: All transaction records are public and can be viewed by anyone.

Bitcoin is often seen as a store of value, similar to “digital gold,” and is used for online payments and investment purposes.  @vitalik.eth