Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (Keep in mind this commences at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this https://worldsocialindex.com/story5606073/a-review-of-blockchain-explorer-xrp-https-rentry-co-4vomqtzo