Block top - The block range and length of your blockchain (in blocks) on generation of the present block Nonce - The transaction selection for your from address (Keep in mind this begins at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://lamm-tolstrup-3.blogbright.net/investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world