Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Agreement generation https://lamm-tolstrup-3.blogbright.net/investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world