Block height - The block quantity and length in 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 actually be the 101st transaction submitted by this account) https://webcastlist.com/story21893526/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-500px-com-p-barrkijrooney