Block height - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmarkinglive.com/story21178018/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-bitsdujour-com-profiles-iptrcw