Block top - The block amount and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://socialeweb.com/story5739772/details-fiction-and-explorer-blockchain-ethereum-https-setiathome-berkeley-edu-show-user-php-userid-13199150