Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction number to the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://ok-social.com/story5767513/the-definitive-guide-to-explorer-blockchain-ethereum-https-setiathome-berkeley-edu-show-user-php-userid-13199150