Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://monobookmarks.com/story20169051/5-essential-elements-for-blockchain-explorer-ethereum-https-www-giveawayoftheday-com-forums-profile-1172807