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Solchat is a communication protocol built on the Solana blockchain, offering encrypted text, voice, and video communication similar to traditional Web2, but within a Web3 environment.

Understanding the importance and risks of token approvals is crucial as it is a key mechanism for accessing and managing tokens in smart contracts and wallets. The article delves into the approval processes for ERC-20 and NFT tokens, including how they work in MetaMask and the potential for malicious exploitation. It emphasizes the necessity of approvals in DeFi interactions while warning about the dangers of unlimited approvals. Additionally, it provides best practices for protecting your assets, such as using hardware wallets like Ledger to enhance security.

Paradigm is an institutional-grade liquidity network for crypto derivatives, offering deep liquidity for options, perpetuals, and futures across 120+ products and any assets.

When novices participate in cryptocurrency contract trading, it is essential to have a deep understanding of the basic knowledge of various contracts, clearly distinguish the characteristics and differences between perpetual contracts and delivery contracts, and make appropriate choices based on their own investment goals and risk preferences. At the trading strategy level, a long-term investment strategy requires precise selection of cryptocurrencies with potential and proficient use of phased opening techniques to reduce costs and risks; short-term trading strategies require clever use of technical indicators, close attention to market hotspots, and seizing fleeting trading opportunities. The most important thing is to pay attention to position management and risk management, so as to achieve stable and long-term profits in the market.