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 begins at 0 so a nonce of one hundred would basically be the one hundred and first transaction https://pr7bookmark.com/story20837878/what-does-blockchain-explorer-usdt-mean-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980