Block top - The block quantity and length from the blockchain (in blocks) on development of the current 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://thekiwisocial.com/story5760302/what-does-blockchain-explorer-usdt-mean-https-www-arrowheadpride-com-users-churchkjeldse