Some of you are not aware about cryptocurrency. So let me introduce to you the basics and the popular, The Bitcoin.
Bitcoin is the most popular cryptocurrency. It was founded in 2009 by an unknown whose hiding in alias Satoshi Nakamoto. So how does it work? You can use Bitcoin to pay digital goods that accepts Bitcoin as a payment. You can also send it to your friends or digital/hardware wallet. All transactions will be listed or recorded to a list of public transaction which what you called Blockchain.
Is Bitcoin Legal? Yes! Japan, UK, US and Canada are just one of the countries which Bitcoin was already legalized. But for some reason there are still countries hasn't accept Bitcoin Adaptation yet.
So therefore, Bitcoin is one of the cryptocurrency circulating in Blockchain Ecosystem. This is just the basics and introduction about cryptocurrency.
Bitcoin Price (as of July 10, 2020, 7:12 am) $9222.18
Source: https://www.binance.com