Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection 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://monobookmarks.com/story20352376/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-diigo-com-010nvri