Block top - The block amount and size in the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarkalexa.com/story6159028/blockchain-explorer-fundamentals-explained-https-gaiaathome-eu-gaiaathome-show-user-php-userid-1577569