Block top - The block quantity and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction amount to the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://e-bookmarks.com/story6284081/details-fiction-and-explorer-blockchain-ethereum-https-gaiaathome-eu-gaiaathome-show-user-php-userid-1577569