Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://keybookmarks.com/story20399785/the-blockchain-explorer-usdt-trc20-diaries-https-bbs-pku-edu-cn-v2-jump-to-php-url-https-cryptoexplorerhub-com