Block height - The block selection and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this starts off at 0 so a nonce of 100 would really be the a hundred and first transaction https://social-lyft.com/story10190403/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-pad-fs-lmu-de-h2fzbno0rjqfpyic-69lxg