Block height - The block variety and duration of the blockchain (in blocks) on development of the current block Nonce - The transaction selection for the from address (Keep in mind this commences at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this https://bookmarkity.com/story20631419/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain