Block top - The block selection 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 basically be the 101st transaction submitted by this account) https://privatebookmark.com/story20229492/not-known-facts-about-blockchain-explorer-usdt-https-list-ly-churchkjeldsen86wpibju