Block top - The block selection and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (Keep in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://keybookmarks.com/story20379384/not-known-facts-about-blockchain-explorer-usdt-https-numberfields-asu-edu-numberfields-show-user-php-userid-6240092