Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://echobookmarks.com/story20698785/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-escatter11-fullerton-edu-nfs-show-user-php-userid-9253086