欧易NFT

A Comprehensive Guide to Using the SOL Phantom Blockchain Wallet for Web3 Beginners.md#

Blockchain - Wallet#

Taking Phantom Wallet as an Example#

1. Overview of Phantom Wallet#

1. Application Scenarios
   • Primarily supports Solana (SOL) chain, while also compatible with Ethereum (ETH) and Polygon (MATIC) assets.
   • Used for storing tokens, NFTs, staking SOL, and connecting to Solana ecosystem DApps (such as Magic Eden, Raydium).
2. Main Advantages
   • Simple user interface, supports multi-chain switching.
   • Built-in token swap, NFT display, and staking features.
   • Provides browser extension and mobile app support (available for iOS and Android).

2. Installation and Configuration#

Step 1: Obtain Phantom

• Browser Extension (recommended Chrome or Brave):
  1. Visit the official website phantom.app, click “Download” → select the browser for installation.
  2. Note: Only obtain from the official website to avoid counterfeit extensions.
• Mobile:
  Search for “Phantom: Crypto Wallet” in the App Store or Google Play to download.

Step 2: Create a New Wallet

1. Launch Phantom, click “Create New Wallet”.
2. Set the wallet name and password (at least 8 characters, including letters and numbers).
3. Backup Recovery Phrase:
   • The system generates 12 English words, write them down in order on paper (avoid screenshots or online storage).
   • Complete the word order verification to ensure successful backup.

Step 3 (Optional): Import Existing Wallet

• If you already have a Solana wallet, you can import it using the private key or recovery phrase:
  Click “Import Existing Wallet” → enter the recovery phrase or private key.

3. Basic Operation Guide#

1. Receive Assets

1. Click the “Receive” button on the wallet homepage.
2. Copy your Solana address (starting with SOL, e.g., SOLabc...xyz) or Ethereum address (switch to ETH chain, starting with 0x).
3. Provide this address to the sender (e.g., withdrawal address from an exchange).

2. Send Assets

1. Click “Send” → enter the recipient's address and transfer amount.
2. Select Network:
   • Ensure the network is Solana when sending SOL.
   • Switch to Ethereum network when sending ETH.
3. Confirm the transaction fee (Solana fees are usually less than $0.01).
4. After verifying the address, click “Confirm” to complete the transaction.

3. Add Tokens or NFTs

• Tokens:
  Click “Tokens” → “+” → search for the token name (e.g., USDC) → click “Add”.
• NFTs:
  NFTs automatically display in the “Collectibles” tab, no manual addition needed.

4. Advanced Features#

1. Multi-Chain Switching

1. Click the network indicator at the top (default is Solana).
2. Select Ethereum or Polygon to manage corresponding assets.
   • After switching networks, the address will change (e.g., ETH address starts with 0x).

2. Token Swap

1. Click “Swap” → select the token pair to swap (e.g., SOL to USDC).
2. Set the slippage tolerance (default 1%, to prevent transaction failure).
3. Confirm the exchange rate and fees before completing the swap.

3. SOL Staking

1. Click “Earn” → “Start Earning”.
2. Choose a validator node (recommended low fee and reputable nodes).
3. Enter the staking amount → confirm the transaction, with earnings updated daily.

4. Connect to DApp (using Magic Eden as an example)

1. Visit magiceden.io, click “Connect Wallet”.
2. Select Phantom → click “Connect” in the pop-up to authorize.
3. When purchasing NFTs, Phantom will automatically pop up the transaction confirmation window.

5. Security Configuration#

1. Basic Protection

• Recovery Phrase/Private Key:
  • Save offline, never share with others (Phantom will not ask for it).
  • Consider using a metal recovery phrase backup (like Billfodl) for fire and corrosion resistance.
• Wallet Password:
  Regularly update the password, avoid reusing it on other platforms.

2. Anti-Phishing Measures

• Domain Verification:
  Ensure the DApp URL you are visiting is correct (e.g., magiceden.io not mag1ceden.com).
• Transaction Confirmation:
  Check the address and amount in the pop-up before signing the transaction to prevent malicious contracts from stealing assets.

3. Enable Privacy Mode

• Turn on “Hide Personal Data” in Phantom settings to prevent sensitive information from being leaked through screenshots.

6. Frequently Asked Questions#

1. Why did the transaction fail?
   • If the Solana network is congested, try increasing the priority fee or retry later.
   • Insufficient balance to cover the transaction fee; reserve 0.02 SOL as a buffer.
2. How to recover the wallet?
   • Install Phantom on a new device → click “Import Existing Wallet” → enter the recovery phrase.
3. Does it support hardware wallets?
   • Supports Ledger connection, select “Connect Hardware Wallet” in settings for enhanced security.

Blockchain - Virtual Currency#

Categories#

USDT vs USDC#

1. Core Differences

2. Use Cases

• Transfers: Choose the corresponding chain when withdrawing from exchanges (e.g., ERC20 requires ETH for gas fees).
• Trading: Exchange for BTC or ETH on exchanges to avoid price volatility risks.
• Hedging: Convert to USDT or USDC to preserve value during market downturns.

⚠️ Note: Cross-chain transfers require confirmation that the other party supports the same chain; otherwise, assets may be lost!

Beginner's Essential Advice#

1. Small Amount Testing: Test with $10 for the first operation to familiarize yourself with the process.
   1. Download Phantom and create a wallet (test the backup process).
   2. Purchase $10 USDT on an exchange (choose Solana chain, be cautious of other products' chains like ERC20, TRC20, BEP20, etc.), and withdraw to the wallet.
   3. Try exchanging a small amount of Solana (or other cryptocurrencies) with USDT on the exchange to experience the process.
2. Understand Gas Fees: Fees may be higher during Solana network congestion; choose your timing wisely.
3. Beware of Scams: Do not trust “private message airdrops” or “official customer service private messages”.
4. Backup with Double Insurance: Store the recovery phrase in two separate locations (e.g., at home and in a bank safe).

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