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Accounts and Keys
Address：A public string used to identify an on-chain account or contract. Public addresses can be shared; private keys must not be shared.
Seed phrase：A set of words used to restore wallet keys. It is highly sensitive control information.
Private key：Secret data used to create signatures and control an account.
It is more useful to place Blockchain and Wallet Glossary inside a real workflow than to study it as an isolated concept. Check the environment, review the request, then verify the result independently.
In practice, treat addresses, gas and blocks as separate layers. One identifies what you are working with, another describes the current environment, and the third often determines confirmation or permission scope. A familiar asset name or polished interface is not a substitute for checking the network, address or contract.
Transactions and Blocks
Private key：Secret data used to create signatures and control an account.
Gas：A measurement or pricing concept for computational resources used by transactions and smart contracts.
Transaction hash：An identifier used to locate a specific on-chain transaction.
The central idea behind Blockchain and Wallet Glossary is context. The same address, asset label or action can have a different meaning on another network or contract.
In practice, treat addresses, gas and blocks as separate layers. One identifies what you are working with, another describes the current environment, and the third often determines confirmation or permission scope. A familiar asset name or polished interface is not a substitute for checking the network, address or contract.
Networks and Execution
Transaction hash：An identifier used to locate a specific on-chain transaction.
Block：A protocol-defined collection of confirmed network data.
Confirmation：After a transaction enters a block, subsequent blocks can increase settlement confidence.
Understanding Blockchain and Wallet Glossary is less about memorizing terminology and more about knowing what each action changes, what must be verified, and which on-chain actions cannot simply be reversed by a wallet.
In practice, treat addresses, gas and blocks as separate layers. One identifies what you are working with, another describes the current environment, and the third often determines confirmation or permission scope. A familiar asset name or polished interface is not a substitute for checking the network, address or contract.
DApps and Permissions
Confirmation：After a transaction enters a block, subsequent blocks can increase settlement confidence.
EVM：The Ethereum Virtual Machine, an execution environment used by Ethereum and many compatible networks.
Layer 2：A class of systems that extends execution or throughput above a base layer.
Blockchain and Wallet Glossary can look simple in a wallet interface, yet it sits on top of account control, network state and protocol rules. Separating those layers leads to better decisions.
In practice, treat addresses, gas and blocks as separate layers. One identifies what you are working with, another describes the current environment, and the third often determines confirmation or permission scope. A familiar asset name or polished interface is not a substitute for checking the network, address or contract.
Staking and Consensus
Layer 2：A class of systems that extends execution or throughput above a base layer.
DApp：An application that uses a blockchain or smart contracts for part of its functionality.
Approval：Permission that lets a specified contract or address use an asset within a defined scope.
It is more useful to place Blockchain and Wallet Glossary inside a real workflow than to study it as an isolated concept. Check the environment, review the request, then verify the result independently.
In practice, treat addresses, gas and blocks as separate layers. One identifies what you are working with, another describes the current environment, and the third often determines confirmation or permission scope. A familiar asset name or polished interface is not a substitute for checking the network, address or contract.
Keep seed phrases and private keys under your own control; imtoken personnel will never ask for them. Check the address, network and amount before sending, and review every DApp signature or approval request independently. Confirmed on-chain transactions generally cannot be reversed by a wallet.