Block top - The block number and length on the blockchain (in blocks) on development of the present block Nonce - The transaction range with 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://thesocialroi.com/story10154291/5-essential-elements-for-blockchain-explorer-ethereum-https-list-ly-churchkjeldsen86wpibju