Block height - The block amount 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 at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://socialupme.com/story5816747/5-easy-facts-about-blockchain-explorer-api-described-https-gaiaathome-eu-gaiaathome-show-user-php-userid-1577569