Block top - The block range and duration of your blockchain (in blocks) on development of the current block Nonce - The transaction quantity for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmarkedblog.com/story21141920/what-does-blockchain-explorer-usdt-mean-https-setiathome-berkeley-edu-show-user-php-userid-13199150