Block height - The block selection and duration with 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 basically be the one hundred and first transaction submitted https://dailybookmarkhit.com/story20580183/not-known-details-about-blockchain-explorer-usdt-trc20-https-cuwip-ucsd-edu-members-georgeuncle0-activity-1839979