Bitcoin (BTC) is the first decentralised cryptocurrency and it runs on the first blockchain in the world. It was invented in 2008 by Satoshi Nakamoto with the help of Hal Finney, the late great cryptographer. Bitcoin’s total supply is permanently limited to 21 million and its market cap as of September 2024 is $1.4 Trillion. Bitcoin is used as a hedge against fiat inflation, a store-of-value and is seizure-resistant.