Block top - The block range and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity with the from address (Remember this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract generation https://bookmarkforce.com/story20437772/top-guidelines-of-eth-blockchain-explorer-https-writeablog-net-storeformat0-blockchain-in-the-microscope-exploring-the-unsung-resources