$ETH Ok, you want to talk about BTC (Bitcoin) — it is the first cryptocurrency created, in 2009 by Satoshi Nakamoto.

It is a decentralized payment system, without bank or government. Each transaction is verified by the network via the blockchain.

Today, Bitcoin is mainly used for:

Investing (as a store of value, somewhat like gold)

Paying in certain stores or online

Protecting your money against inflation in some countries

Do you want me to also give you its current price or explain how to buy it?