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 (bear in mind this begins at 0 so a nonce of one hundred would in fact be the a hundred and first https://sites2000.com/story10195290/a-review-of-blockchain-explorer-xrp-https-lamm-tolstrup-3-blogbright-net-investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world