BTC (Bitcoin) is a decentralized digital currency based on blockchain technology. It was launched in 2009 by a person or group known by the pseudonym "Satoshi Nakamoto". Here is a summary of how it works:

1. Decentralization:

It is not controlled by any government or institution.

It operates through a network of computers spread around the world.

2. Blockchain:

A digital ledger that encrypts all transactions permanently and transparently.

Transactions are verified by "miners".

3. Mining:

The process of using computing power to solve complex mathematical problems.

When these problems are solved, a new block is added to the blockchain, and the miner receives a reward (currently 6.25 bitcoins per block).

4. Transactions:

Anyone can send or receive bitcoins via digital wallets using a private key.

Transaction fees are low compared to traditional systems.

5. Limited number:

The maximum issue of Bitcoin is 21 million units.

This adds an element of scarcity and increases its value in the long run.

6. Uses:

As a means of payment.

As an investment tool (safe haven).

In international trade thanks to the reduction of banking restrictions.

If you need more information on any of these points, let me know!