BTC addresses use Base58 (like Base64 but with no equivalent character: IOl0+/) and need to start with either one, three, bc1q or bc1p depending on what type of address it is actually. Your Ethereum address is your identity over the Ethereum community. It is required to connect with the network https://finnzxvtp.bloggactivo.com/28823420/tronscan-things-to-know-before-you-buy