Block height - The block selection and size of the blockchain (in blocks) on development of the current block Nonce - The transaction amount with the from address (Keep in mind this starts off at 0 so a nonce of 100 would truly be the one hundred and first transaction https://bookmarkize.com/story20866419/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain