Block top - The block variety and length of your blockchain (in blocks) on development of the present block Nonce - The transaction range for your from address (Remember this begins at 0 so a nonce of a hundred would truly be the 101st transaction submitted by this account) Contract https://social40.com/story5771892/blockchain-explorer-usdt-trc20-fundamentals-explained-https-heavenarticle-com-author-pathpastor4-452336