1
When a user initiates a transaction in a wallet (like MetaMask), the wallet software creates an Ethereum transaction object and signs it using the user's secret private key stored on the client.
2
The signed transaction is broadcasted to the Ethereum network, where miners validate the account balance, signature, and other parameters.
3
Valid transactions are included in a block by miners and broadcasted to the network; once added to the blockchain, the transaction achieves persistence and cannot be removed.
4
Etherscan is a public block explorer tool used to look up addresses, check balances in ether and fiat currency, and track transaction status on the Ethereum blockchain.
5
To fund a wallet initially, users create an account with a crypto exchange (such as Coinbase, Kraken, or Bitfinex), exchange fiat currency for crypto assets, and withdraw the crypto to their local personal wallet.