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 100 would actually be the 101st transaction submitted by this account) Contract https://bookmarkja.com/story22825605/the-blockchain-explorer-usdt-trc20-diaries-https-rentry-co-4vomqtzo