Block top - The block quantity and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity to the from address (Keep in mind this starts at 0 so a nonce of 100 would basically be the 101st transaction submitted by this account) https://thebookmarklist.com/story20489265/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-www-giveawayoftheday-com-forums-profile-1172807