$BTC

**Summary of Bitcoin:**

1. **Definition:**

- Bitcoin is the first decentralized digital currency, created in **2009** by an unknown person or group under the name **Satoshi Nakamoto**.

- It relies on **blockchain** technology to record transactions without the need for an intermediary like banks.

2. **Main Features:**

- **Decentralization:** It is not subject to the control of any government or financial institution.

- **Scarcity:** The number of bitcoins is limited to **21 million** units only.

- **Mining:** The process of issuing new coins by solving complex mathematical equations using computing devices.

- **Encryption:** It uses strong encryption techniques to secure transactions and digital wallets.

3. **How to Obtain It:**

- Purchase through trading platforms (such as **Binance, Coinbase**).

- Mining (requires specialized devices).

- Accepting it as payment for goods or services.

4. **Advantages:**

- **Speed of transactions** especially in international transactions.

- **Low fees** compared to bank transfers.

- **Transparency** due to the public blockchain ledger.

- **Protection from inflation** due to limited supply.

5. **Risks and Challenges:**

- **High volatility:** Its prices change very rapidly.

- **Lack of regulation:** It may face bans or restrictions in some countries.

- **Wallet security:** Losing private keys means losing funds.

- **Use in illegal activities** sometimes due to anonymity.