Blockchain confirmation time refers to the time it takes for a transaction to be broadcasted to be packaged by a block and written to the chain. The confirmation speeds of different chains vary. 1. Bitcoin produces blocks on average in 10 minutes, and it is recommended to confirm 6 times to ensure security; 2. Ethereum produces blocks in about 12 seconds, and 1-3 times can be confirmed, and most transactions are completed within 1 minute; 3. The BSC chain block time is about 3 seconds, suitable for high-frequency trading; 4. The TRON tide block time is 1-3 seconds, suitable for real-time transfer; 5. The Polygon block time is about 2 seconds, with low fees, and is widely used in DeFi and NFT. Trading hash (TxID) is required for query and confirmation status. Recommended platforms include: 1. Ouyi OKX, which supports multi-chain transaction query; 2. Binance, suitable for BSC chain; 3. Huobi HT

Blockchain browser is a must-have on-chain query tool for Web3 users. 1. It serves as a "search engine" in the decentralized world, allowing users to openly and transparently verify all records on the blockchain; 2. The core functions include querying transaction details, viewing account information, exploring block data and tracking smart contracts; 3. When tracking transactions, you need to obtain the transaction hash, select the browser corresponding to the public chain, and enter the hash to view the status, address, amount and fee details; 4. Confirm whether the transaction is successful through the browser is a key step to ensure the security of digital assets. Proficient use can help users better understand and participate in the blockchain ecosystem, thereby operating more safely and stably in the decentralized world.

Public keys are used to receive assets and identity identification, private keys are used to sign and control assets. The two are based on asymmetric encryption technologies such as ECDSA. Private keys can be derived from public keys but vice versa. mainstream platforms such as Ouyi OKX adopts multiple signatures and cold storage, Binance uses hardware isolation and layered permissions, Huobi HTX implements hot and cold separation and whitelisting mechanisms, and Gate.io gate combines multiple signatures and distributed storage; public keys and private keys are used in blockchain for identity authentication, asset control and decentralized login; key security management suggestions include offline backup, anti-phishing, enabling multi-factor authentication and using multi-signature or MPC; among different management methods, single keys are at high risk, multiple signatures are suitable for teams, and hardware equipment is highly secure but costly.

High-frequency trading is one of the most technologically-rich and capital-intensive areas in the virtual currency market. It is a competition about speed, algorithms and cutting-edge technology that ordinary market participants are hard to get involved. Understanding how it works will help us to have a deeper understanding of the complexity and specialization of the current digital asset market. For most people, it is more important to recognize and understand this phenomenon than to try it yourself.

In 2025, the cryptocurrency market will be driven by three major factors: clear policy supervision, in-depth institutional participation and technological innovation. 1. The United States may introduce a comprehensive crypto bill, and global regulatory coordination (such as the EU MiCA) will enhance the legitimacy of the industry; 2. Institutional funds will enter large-scale through compliant products such as Bitcoin and Ethereum ETFs, and exchanges such as Binance, OKX, Huobi, Gate.io and Coinbase will serve as core infrastructure to undertake institutional traffic; 3. The popularization of Layer 2 network will promote the scale of applications, and the tokenization of real-world assets (RWA) is expected to inject trillion-dollar liquidity into DeFi. The integration of AI and crypto will give birth to a new paradigm, jointly driving the growth of the industry's intrinsic value.

The core difference between ETH and ETC comes from the hard fork after the DAO incident in 2016. 1. ETH chose to recover losses through hard forks, adhere to the concept of pragmatism, and support blockchain variability to cope with crises; 2. ETC adheres to "code is law" and maintains the immutability of the original chain; 3. ETH has a huge and active developer ecosystem and PoS consensus, with high security and wide application; 4. ETC follows the PoW mechanism, has slow development, a small ecosystem, has encountered 51% attacks, and has weak market influence; 5. Both can be traded on mainstream exchanges such as Binance, Ouyi, Huobi, and Gate.io, among which ETH is the second largest crypto asset in the world, with liquidity and recognition far exceeding ETC.

The top ten most promising virtual currencies in 2025 include: 1. Bitcoin (BTC) has become the first choice for stable investment due to the halving effect and digital yellow metallicity; 2. Ethereum (ETH) consolidates its leadership in smart contract platform with its huge ecosystem and continuous upgrades; 3. Solana (SOL) recovers rapidly in the DePIN and DeFi fields with its high performance advantages; 4. Arbitrum (ARB) is the leader in Ethereum Layer2, benefiting from ecological traffic expansion; 5. Chainlink (LINK) is the overlord of decentralized oracle, supporting the development of DeFi and RWA; 6. Render (RNDR) connects GPU computing power supply and demand, meeting the needs of AI and metacosmic computing power; 7. I

The top ten virtual currency exchanges in the world in 2025 are: 1. Binance, which ranks first with its leading trading volume, rich currency and complete ecosystem; 2. OKX, which ranks second with strong derivatives trading and Web3 account technology; 3. Coinbase, as a Nasdaq listed platform, is known for its high compliance and novice friendly; 4. Kraken, has a long history, high security, and has complete fiat currency support; 5. Gate.io, which is famous for its massive altcoins and fast new projects; 6. KuCoin, which is active in the community, focuses on the functions of new currency initial public offerings and trading robots; 7. Huobi (HTX), which has a deep user base, continuously optimizes services and revitalizes market position; 8. By