Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the 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://expressbookmark.com/story20807726/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-numberfields-asu-edu-numberfields-show-user-php-userid-6240092