Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (Keep in mind this starts at 0 so a nonce of 100 would essentially be the one hundred and first transaction submitted https://bookmarkfavors.com/story6317235/how-blockchain-explorer-xrp-can-save-you-time-stress-and-money-https-www-demilked-com-author-brokerwhorl5