Block top - The block range and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction selection 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://tinybookmarks.com/story20345612/what-does-blockchain-explorer-usdt-mean-https-www-starsandstripesfc-com-users-churchkjeldse