Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction number for your from address (Keep in mind this commences at 0 so a nonce of a hundred would really be the a hundred and first transaction https://bookmarksknot.com/story22554886/blockchain-explorer-usdt-trc20-fundamentals-explained-https-doc-adminforge-de-xbqatr5jtxomaazj2qoagg