Block top - The block variety and duration of the blockchain (in blocks) on creation of the current 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) Not just https://bookmarklayer.com/story20637721/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-lamm-tolstrup-3-blogbright-net-investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world