The Web3 Community -- Web3 - Usage of HD Wallets

# 1. Wallet Operations

• • Metamask
• OkWallet

# 2. Process of Using Browser Plugin Wallet

• Generating Wallet
• Enter password ---> Mnemonic phrase ----> Verify mnemonic phrase (Backup mnemonic phrase) -----> Wallet generated
• Mnemonic phrase ---> Enter password -----> Wallet generated
• The password used during wallet generation is for encrypting the mnemonic phrase and private key
• Export Process
• Display mnemonic phrase ---> Enter password -----> Answer several security questions -----> Long press to display mnemonic phrase
• In the details of a single account ---> Enter password -----> Answer several security questions -----> Long press private key
• Import Process
• Enter private key ---> Enter password -----> Wallet generated
• Enter mnemonic phrase ---> Enter password -----> Wallet generated
• Notes on Mnemonic Phrase and Private Key
• The mnemonic phrase manages the entire wallet, following protocols such as BIP32, BIP39, BIP44, BIP86, etc.
• Private key management is for a single address; importing a private key can only generate a single address
• Receiving funds, displaying QR code and address, can copy the address to transfer to other wallets, or scan the QR code
• Transfer ---> Enter address and amount -----> Click next to select fee model (Fast, Slow, Instant; this includes a gas oracle) -----> Send the transaction
• Instant Exchange ---> Exchange ETH for USDT, after entering the amount of ETH, get the quote showing the amount of USDT that can be exchanged, fee (gas oracle), click confirm, wait for a while, exchange successful, analyzed data as follows
• The exchange enters the Metamask router, then goes to OKX's Dex for exchange; this exchange uses the functionality of a trading aggregator
• Cross-bridge (cross-chain + exchange): Transfer one layer of ETH across chains to exchange for OP, use Metamask to transfer funds to the second layer, then go to Uniswap V4 to exchange for OP
• Wallet connects to Dapp, Dapp browser, Dapp can interact with the wallet in three ways
• Hook
• Js Bridge
• Websocket
• The transfer process for NFT and ERC20 is similar; NFTs will represent a file, image file, video file, or audio file, etc.

# 3. Mobile Wallet Operations

• Generating Wallet
• Enter password ---> Mnemonic phrase ----> Verify mnemonic phrase (Backup mnemonic phrase) -----> Wallet generated
• Mnemonic phrase ---> Enter password -----> Wallet generated
• The password used during wallet generation is for encrypting the mnemonic phrase and private key
• Export Process
• Display mnemonic phrase ---> Enter password -----> Display mnemonic phrase
• In the details of a single account ---> Enter password -----> Private key
• Import Process
• Enter private key ---> Enter password -----> Wallet generated
• Enter mnemonic phrase ---> Enter password -----> Wallet generated
• Notes on Mnemonic Phrase and Private Key
• The mnemonic phrase manages the entire wallet, following protocols such as BIP32, BIP39, BIP44, BIP86, etc.
• Private key management is for a single address; importing a private key can only generate a single address
• Receiving funds, displaying QR code and address, can copy the address to transfer to other wallets, or scan the QR code
• Transfer ---> Enter address and amount -----> Click next to select fee model (Fast, Slow, Instant; this includes a gas oracle) -----> Send the transaction
• Instant Exchange ---> Exchange POL for USDT, after entering the amount of POL, get the quote showing the amount of USDT that can be exchanged, fee (gas oracle), click confirm, wait for a while, exchange successful, analyzed data as follows
• The exchange enters the router, then goes to Dex for exchange; this exchange uses the functionality of a trading aggregator
• Cross-bridge (cross-chain + exchange): Transfer one layer of ETH across chains to exchange for OP, use tp to transfer funds to the second layer, then go to Uniswap V4 to exchange for OP
• Wallet connects to Dapp, Dapp browser, Dapp can interact with the wallet in three ways
• Hook
• Js Bridge
• Websocket
• The transfer process for NFT and ERC20 is similar; NFTs will represent a file, image file, video file, or audio file, etc.
• Discovery module, integrating all Dapps into the wallet, can be used directly by clicking.

# Introduction to The Web3 Community

The Web3 is a community focused on the design and development of Web3 technology solutions, dedicated to providing professional enhancement tutorials, design, research and development, and training services for individuals and enterprises. In addition, The Web3 also offers comprehensive support such as project security audits, research and analysis, and project incubation.

The Web3 consists of three core components:

• • "The Web3 Community": Focused on education and training, successfully cultivating 160 excellent developers and over 50 outstanding product managers.
• "The Web3 Security Laboratory": Provides professional security audit services for well-known projects such as DappLink, FishCake, Parapack, RootHash, etc.
• "The Web3 Capital": Has invested over $2 million, actively promoting the incubation and growth of Web3 innovative projects.

# The Web3 Community Technical Tutorial Links

• • Wallet: https://github.com/the-web3
• Contracts: https://github.com/the-web3-contracts
• Public Chain: https://github.com/the-web3-chain