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 (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://naturalbookmarks.com/story20767033/5-tips-about-blockchain-explorer-you-can-use-today-https-lamm-tolstrup-3-blogbright-net-investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world