Block top - The block number and length on the blockchain (in blocks) on generation 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 basically be the 101st transaction submitted by this https://tealbookmarks.com/story20585992/blockchain-explorer-usdt-trc20-fundamentals-explained-https-independent-academia-edu-drewandreassen4