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 actually be the 101st transaction submitted by this account) https://brightbookmarks.com/story20665749/blockchain-explorer-usdt-trc20-fundamentals-explained-https-intensedebate-com-people-hawkwhorl3