Block top - The block quantity and length of the blockchain (in blocks) on development of the present block Nonce - The transaction number 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://7bookmarks.com/story20173815/what-does-blockchain-explorer-usdt-mean-https-www-starsandstripesfc-com-users-churchkjeldse