Block height - The block quantity and length from the blockchain (in blocks) on creation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bbsocialclub.com/story22828291/blockchain-explorer-usdt-trc20-fundamentals-explained-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980