Cryptocurrency is a digital currency that operates on the basis of decentralized blockchain technology. It is not controlled by central authorities (such as banks), and transactions are verified by network participants using cryptographic methods. Key Features:

— Decentralization: There is no single administrator; data is stored on multiple computers.

— Security: The use of encryption and block chains (blockchain) makes the system resistant to hacking.

— Anonymity: Transaction participants are identified only by wallet addresses, which ensures confidentiality (although not absolute).

— Irreversibility of payments: Confirmed transactions cannot be reversed.

Current Market Status (August 2025)

According to CoinMarketCap and Investing.com, the total cryptocurrency market cap exceeds $2.9 trillion. Top 5 assets by market cap:

| Cryptocurrency | Price ($) | Cap ($) | Change (24h) |

|------------------|--------------|------------------------|----------------------|

| Bitcoin (BTC) | 115,212 | 2.29 trillion | +0.93% |

| Ethereum (ETH) | 3,682 | 444 billion | +5.66% |

| XRP | 3.05 | 181 billion | +5.07% |

| USDT | 1.0002 | 163 billion | +0.01% |

| BNB | 764 | 106 billion | +2.06% |

Trends:

— Ethereum grew by 5,66% in a day amid news about the network’s 10th anniversary and companies investing $1.5 billion in ETH.

— Litecoin (LTC) showed growth of +9.73% due to increased demand for altcoins.

— Stablecoins (USDT, USDC) remain stable, but their share in the total trading volume exceeds 60%.

Technologies and Applications

— Blockchain: A distributed registry where transaction data is stored in sequential blocks. Guarantees transparency and protection from changes. — Smart contracts: Automatic contracts (e.g. in Ethereum) that execute when conditions are met. Used in DeFi, NFT, supply chain.

— Main areas of use:

— Investments and speculation (e.g. Bitcoin).

— Payment systems (Ripple for international transfers).

— Decentralized applications (games, social networks based on Ethereum).

Risks and problems

1. Volatility: Prices can change dramatically due to news or influencer actions (e.g. Elon Musk’s tweets about Dogecoin).

2. Regulatory restrictions: Cryptocurrencies are banned or restricted in some countries (e.g. ban on operations for banks).

3. Fraud: An example is the collapse of the FTX exchange in 2023, which resulted in the loss of $5 billion in client funds.

4. Cyberattacks: Phishing, SIM swapping, and wallet hacks.

Outlook

— Institutional Investments: Large companies are actively buying up ETH, anticipating the growth of its value as «digital oil».

— Network Competition: The battle for leadership between Ethereum and Solana.

— Regulation Development: Countries are gradually forming legal frameworks, which can reduce volatility.