What is Cryptocurrency?

Hello everyone, welcome to the Stellapex classroom!

Today, we’re diving into one of the most talked-about categories in the world of finance and technology:

👉 Cryptocurrency

1. What is Cryptocurrency?

Cryptocurrency is a digital currency that uses cryptography and blockchain technology.
No country or bank issues it. Instead, nodes across the global network collectively maintain it.People can trade these currencies freely across the globe, with no single institution in control.

Common representative cryptocurrencies include:

• Bitcoin (BTC)
• Ethereum (ETH)
• Litecoin (LTC)

2. Core Features of Cryptocurrency

• Decentralization: No single entity controls it; nodes worldwide maintain it together.
• Cryptography-based: Cryptography makes transactions secure and unchangeable.
• Limited total supply: For example, Bitcoin has a fixed cap of 21 million coins and cannot be inflated.
• Peer-to-peer payments: Users can transfer funds directly to each other without intermediaries like banks.

3. Cryptocurrency vs. Digital Currency

Many people ask: “Is cryptocurrency a form of digital currency?”

The answer is: ✅ Yes, but it is only one part of the broader digital currency category.

Digital currency can be divided into three types:

1. Central bank digital currency (e.g., Digital RMB)
2. Cryptocurrency (e.g., BTC, ETH)
3. Stablecoins (e.g., USDT, USDC, DAI)

In other words: Bitcoin is both a cryptocurrency and a digital currency.

4. Cryptocurrency vs. Fiat Currency

• Issuer: Fiat currency is issued by governments and central banks, while cryptocurrency is created by algorithms and networks.
• Total supply: Fiat currency can be infinitely issued, whereas cryptocurrency has a fixed upper limit (e.g., 21 million BTC).
• Source of trust: Fiat currency relies on national credit, while cryptocurrency is based on mathematics and consensus mechanisms.
• Management model: Fiat currency is centralized, while cryptocurrency is decentralized.

Logically, fiat currency operates on “national credit,” while cryptocurrency survives on “algorithmic consensus.” It represents a major leap in the form of money: from “national credit” to “consensus across the global internet.”

Summary

Cryptocurrency is a decentralized form of digital currency. Without government backing, it leverages the power of cryptography and blockchain to enable trust to be freely transmitted in the digital world. This is the “new magic” of money: trust rooted in mathematics, and order built on code.