Frequently Asked Questions
Common questions about wallets, keys, networks, transfers, gas, transaction hashes, DApps, signatures, approvals, EVM, Layer 2, Ethereum, PoS and validators.
A wallet manages the cryptographic keys used to authorize activity for blockchain accounts. Assets remain recorded on their networks rather than being stored inside the interface.
The user should keep them. imtoken personnel will not ask for a seed phrase, private key or verification code, and those credentials should never be sent to another person.
An address can look familiar across compatible networks while balances and contracts remain separate. The sender and receiver should agree on the same network.
Gas measures network execution resources. The actual fee depends on network rules, congestion and the complexity of the transaction or contract call.
It is a public identifier for an on-chain transaction. It can be used with a block explorer to inspect status, addresses, token transfers, gas use and block information.
No. Connection, signatures, token approvals and transactions are separate actions and should be reviewed independently.
It is permission for a specified smart contract to use a token within an allowed scope. Review the contract and amount before approving.
Often yes through an on-chain transaction, but the method and fee depend on the network. Disconnecting a site alone does not necessarily revoke an approval.
The Ethereum Virtual Machine is an execution environment used by Ethereum and many compatible networks for smart contracts.
Layer 2 refers to networks or systems that process activity outside the main chain while maintaining a defined relationship with it. Bridging can involve additional confirmation steps.
Generally no. A wallet cannot unilaterally reverse a transaction that the network has confirmed, so address, network and amount should be checked before submission.
Use trusted entry points, check the domain carefully, reject requests for recovery credentials and review every signature or approval instead of relying on urgency or branding.
Public networks and shared computers can add exposure. Sensitive wallet actions are better performed on a trusted, updated device and network.
Ethereum staking is part of its Proof-of-Stake consensus system. Validators perform protocol duties and may receive variable rewards.
No. Rewards can change, exits can involve waiting periods, validators may face penalties and digital asset prices can fluctuate.
A validator participates in Proof-of-Stake consensus according to protocol rules. Operation involves technical responsibilities, key management and economic risk.
Network congestion, fee settings, nonce ordering or node propagation can affect pending time. Use the transaction hash to inspect the current state.
Public information such as the network name, transaction hash, public address and error text can help diagnose a problem. Never send a seed phrase, private key or verification code.