Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity for your from address (Keep in mind this commences at 0 so a nonce of a hundred would basically be the one hundred and first transaction https://networkbookmarks.com/story20612168/a-review-of-blockchain-explorer-xrp-https-www-demilked-com-author-brokerwhorl5