Block height - The block quantity and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://sparxsocial.com/story10793719/a-review-of-blockchain-explorer-xrp-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain