BTC and BSV are two different cryptocurrencies that derive from the original Bitcoin protocol. BTC stands for Bitcoin Core, while BSV stands for Bitcoin Satoshi's Vision. The main difference between the two lies in their underlying protocols and the goals of their respective communities.

Bitcoin Core (BTC) is the original Bitcoin protocol, which was created by Satoshi Nakamoto in 2009. It is a decentralized digital currency that allows for peer-to-peer transactions without the need for intermediaries such as banks. The BTC community places a strong emphasis on maintaining the original vision of Bitcoin as a decentralized and censorship-resistant currency.

Bitcoin Satoshi's Vision (BSV), on the other hand, is a fork of the original Bitcoin protocol that aims to restore the original vision of Satoshi Nakamoto. The BSV community believes that the original Bitcoin protocol should be used as a peer-to-peer electronic cash system, allowing for unlimited transactions at a low cost. They argue that the BTC protocol has deviated from this original vision by implementing features such as the SegWit transaction format, which they believe compromises the currency's scalability and security.

In summary, the main difference between BTC and BSV lies in their underlying protocols and the goals of their respective communities. BTC aims to maintain the decentralized and censorship-resistant nature of the original Bitcoin protocol, while BSV aims to restore the original vision of Satoshi Nakamoto by implementing a protocol that supports unlimited transactions at a low cost.