Block top - The block number and length with 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 one hundred would essentially be the one hundred and first transaction https://bookmarkworm.com/story20190616/not-known-details-about-blockchain-explorer-usdt-trc20-https-pad-fs-lmu-de-h2fzbno0rjqfpyic-69lxg