Block top - The block number and length of your blockchain (in blocks) on creation of the present block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://toplistar.com/story22268881/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-woorips-vic-edu-au-profile-jessenisrgibbons96537-profile