Block top - The block selection and duration of the blockchain (in blocks) on generation of the current block Nonce - The transaction number for your from address (Keep in mind this commences at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://socialbraintech.com/story5233906/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-woorips-vic-edu-au-profile-jessenisrgibbons96537-profile