$BTC ### 🧱 What is BTC?

BTC is the **first and most well-known crypto asset**. Created by *Satoshi Nakamoto* in 2009, its original goal was to provide a form of **decentralized**, **secure**, and **intermediary-free** money like banks or governments.

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### ⚙️ Key features

- **Limited supply**: There will only be 21 million BTC.

- **Decentralized network**: Thousands of nodes verify transactions around the world.

- **Public blockchain**: Every movement of BTC is recorded transparently.

- **PoW (Proof of Work) consensus system**: Miners solve complex calculations to validate transactions.

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### 📉 Volatility and utility

- It is highly **volatile**, making it both a **speculative asset** and a **store of value** (like “digital gold”).

- It can be used as a **medium of exchange**, although many hold it as an investment.

- Its narrative as a **safe haven during geopolitical crises** (like the one you researched between Israel and Iran) makes it popular in unstable markets.

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### 🔒 Security and Web3

Due to your focus on Web3 Security, there is a critical point: the Bitcoin network is extremely robust against spoofing or double spending attacks thanks to its consensus mechanism. However, **external services**, such as exchanges or wallets, can represent weak points if not properly audited.

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### 🧠 BTC and structured learning

Your method of studying terms by structure and length fits perfectly: BTC is the foundation of many concepts like “halving”, “hashrate”, or “cold wallet”. A structured glossary can be built starting with Bitcoin.

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