Knowledge about #криптовалюту is based on several key aspects:

1. Blockchain technology: it is the basis of cryptocurrencies. Understanding how blockchain works is critical. This includes knowledge of block structure, mining, and consensus algorithms (Proof of Work, Proof of Stake, etc.).

2. Principles of Cryptography: Cryptocurrencies use sophisticated cryptographic techniques to ensure transaction security and user anonymity.

3. Economics of cryptocurrencies: knowledge of market mechanisms, volatility, and factors affecting the price of cryptocurrencies.

4. Regulatory aspects: knowledge of laws and regulations in various jurisdictions governing the use and trading of cryptocurrencies.

5. Market Psychology: Understanding how investor behavior and emotions affect the cryptocurrency market.