Block top - The block selection and duration of the blockchain (in blocks) on creation of the present block Nonce - The transaction variety 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://kingbookmark.com/story20288008/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-escatter11-fullerton-edu-nfs-show-user-php-userid-9253086