What is Bitcoin? Complete Guide to Understanding the First Cryptocurrency

What is Bitcoin? Complete Guide to Understanding the First Crypto

Bitcoin is often presented as the monetary revolution of the 21st century. But what is this cryptocurrency that has disrupted the financial markets and sparked the interest of millions of investors around the world? In this complete guide, we explain simply what Bitcoin is, how it works, why it is important, and how you can get started in this exciting universe.

Origins and Definition of Bitcoin

Created in 2009 by a person or group under the pseudonym Satoshi Nakamoto, Bitcoin is the world’s first decentralized cryptocurrency. Unlike traditional currencies issued by central banks, Bitcoin operates without intermediaries thanks to an innovative technology called blockchain. The latter guarantees the security and transparency of transactions, making Bitcoin a unique digital asset.

Bitcoin is both a digital currency, a means of payment, and an investment asset. Its quantity is limited to 21 million bitcoins, which gives it a scarcity compared to classic fiat currencies whose creation can be unlimited.

How Does Bitcoin and Blockchain Work?

Bitcoin relies on blockchain technology, a distributed public ledger where all transactions are recorded chronologically and immutably. Each transaction is validated by a network of miners through a process called “proof of work.” These miners use powerful computers to solve complex cryptographic puzzles that secure the network.

In exchange for their work, miners receive freshly created bitcoins as well as transaction fees. These fees vary according to network congestion: for example, in 2023, they ranged between $0.50 and $5 per transa