Block height - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://kingbookmark.com/story20882009/blockchain-explorer-usdt-trc20-fundamentals-explained-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c