Block height - The block selection and size from the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (Remember this starts off at 0 so a nonce of 100 would essentially be the a hundred and first transaction submitted by https://geniusbookmarks.com/story20513169/5-easy-facts-about-blockchain-explorer-api-described-https-www-pdc-edu-url-https-cryptoexplorerhub-com