$BTC On the basis of BTC, cryptocurrencies such as Litecoin and Bitcoin Cash were created. Litecoin was created as an alternative to Bitcoin, its source code was taken as the basis for the project launched in 2011[1]. Bitcoin Cash appeared as a result of the split from Bitcoin and is a separate cryptocurrency that uses different software[2].

1. en.wikipedia.org: Litecoin

2. en.wikipedia.org: Bitcoin Cash