# What is a cryptocurrency?

This means that they do not exist physically, they are only present in the virtual environment. They are created on a <mark style="color:green;">**blockchain**</mark> network that is responsible for securely storing the most diverse types of information. Such as, for example, financial transactions, records and the data of people who participate in those transactions.

These cryptocurrencies generated on the <mark style="color:green;">**blockchain**</mark> have a value that, in some cases, can be converted to other currencies, such as the dollar or real, and, therefore, they can be used as an exchange currency for the purchase of products and consumption of services.

&#x20;Each country has different legislation regarding cryptocurrencies. In Japan, cryptocurrency is already accepted as a legal form of payment. In Brazil, cryptocurrencies are classified as property  – like a car or a house, for example.

### How to make transactions?

To invest in cryptocurrencies you need to have a <mark style="color:green;">**crypto wallet**</mark>, where you will store, exchange, or sell your coins.&#x20;

From this wallet you will be able to connect with websites for selling or exchanging currencies.&#x20;

You will also be able to connect to new project launch sites, such as pinksale, where <mark style="color:green;">**Greentech Coin**</mark> will be launched, for example.
