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【课堂-新手攻略】什么是Chainlink

This article explores the challenge of obtaining off-chain data for smart contracts and introduces Chainlink as a key decentralized oracle network solution. Chainlink provides secure and reliable off-chain data to smart contracts through a distributed node network, with the LINK token playing an important role as a service fee payment and node incentive, ensuring the decentralization and reliability of the network. The article details the operation mechanism, security strategies, and DeFi application practices of Chainlink, highlighting its profound impact on the blockchain ecosystem and signaling continued innovation in solving the "oracle problem" for smart contracts.

What Is Chainlink (LINK)?

【课堂-新手攻略】普遍安全原则

This article delves into the significance of ensuring personal privacy and cryptographic asset security in a blockchain environment. It emphasizes specific methods for preventing indiscriminate attacks and targeted attacks. From handling transaction information discreetly, severing offline-online identity connections, to using encrypted communication and enhancing password management, as well as correctly selecting wallet types and cautiously handling private keys, these all provide practical security guidelines for cryptocurrency holders. The article also mentions the critical role of strengthening security awareness, implementing multi-layer protection, and adhering to regulations in creating a secure investment environment within decentralized financial systems.

What Are Universal Security Principles?

【课堂-新手攻略】一份写给初学者的风险管理指南

This article delves into the essence and application of risk management in daily life and financial markets, emphasizing its pivotal role as a core strategy in the decision-making process. By constructing a systematic risk management process through the five-step method of goal setting, risk identification, risk assessment, risk control, and risk monitoring, it is applicable to various investors and organizations. The article discusses various types of risks involved in traditional and emerging financial instruments and provides practical risk management strategies aimed at helping beginners effectively identify and manage risks, ensuring investment growth and wealth preservation and appreciation. Additionally, the article highlights the importance of risk management in practical operations and its enhancing effect on decision quality through case analysis.

Beginner's Guide to Risk Management

【课堂-新手攻略】无代码工具如何改变Web3领域

No-code tools have emerged as a major driving force in the Web3 world by significantly reducing the technical barrier for non-professional developers to delve into blockchain applications and smart contract creation through visual development environments. These tools not only foster diversification and user-friendliness in the cryptocurrency domain but also expand the possibilities of decentralized applications across gaming, marketplaces, and social networking. As they continue to evolve and improve, no-code tools are poised to further promote the adoption and innovation of Web3 technologies, potentially fueling the prosperity of new business models and ecosystem service markets.

No-Code Tools: Driving Web3 Innovation

【课堂-新手攻略】移动平均线的解释

This article delves into the application and two core categories of moving averages (MAs) in financial trading analysis: simple moving average (SMA) and exponential moving average (EMA). The SMA reveals long-term trends by processing historical closing price means, while the EMA assigns greater weight to new data to capture short-term fluctuations. The article explores the applicability of MAs in various trading strategies, particularly the significance of crossover signals in identifying market trend reversals. It also highlights the risks of using MAs, such as lagging and false breakouts. Overall, moving averages, as a fundamental and practical technical analysis tool, need to be combined with other indicators and appropriate time period settings to better serve the decision-making needs of different investors in complex financial markets.

Decoding Moving Averages

[课堂-labs] #38 3.17-3.23

Ethereum All Core Developers Consensus Call #130 Writeup

【课堂-新手攻略】如何使用比特币ATM机

This article delves into the functionality and operational mechanics of Bitcoin ATMs, an innovative tool that facilitates direct purchase of Bitcoin using cash, ensuring higher anonymity and convenience. It not only outlines the specific steps from preparing a wallet address to locating a Bitcoin ATM but also compares its differences with traditional bank services, emphasizing the unique advantages of Bitcoin ATMs in seamless conversion between fiat and cryptocurrencies. Despite longer transaction confirmation times and relatively limited distribution, Bitcoin ATMs are gradually expanding their global coverage and improving services, with the potential to become a significant entry point for more users into the world of cryptocurrencies in the future.

Hands-On Guide to Using Bitcoin ATMs

【课堂-新手攻略】如何计算投资回报率（ROI）

This article delves into the pivotal role of return on investment (ROI) in assessing investment performance and its calculation method. It also uncovers its limitations. The article points out that while ROI is a fundamental tool for evaluating the profitability of investment projects, it needs to be combined with other financial metrics, such as risk-adjusted returns, liquidity ratios, and corporate performance indicators, in practical applications to more accurately evaluate the overall value of investment projects. It emphasizes the importance of considering factors such as time value, market liquidity, and risk tolerance, aiming to help investors view investment targets from a diversified perspective, thus making more wise and comprehensive investment decisions.

Calculating Investment Returns: Optimizing Asset Allocation

【课堂-新手攻略】什么是《Cryptopunks》？

CryptoPunks are pioneering early NFT projects that utilize the Ethereum blockchain to create unique and collectible pixel art characters. Although initially distributed for free, their value soared with the rise of the NFT market, with individual pieces selling for over $7.5 million. The project has driven the development of the ERC-721 standard and spearheaded a new wave of crypto art and the NFT market worldwide, significantly impacting the future landscape of the intersection between blockchain technology and the art industry.

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