Block height - The block number and size from the blockchain (in blocks) on generation of the present block Nonce - The transaction amount for the from address (bear in mind this starts off at 0 so a nonce of 100 would basically be the a hundred and first transaction https://dmozbookmark.com/story20552518/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-multichain-com-qa-user-knotdrop3