Block height - The block quantity and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with 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://bookmarkworm.com/story20255749/explorer-blockchain-tron-an-overview-https-rentry-co-4vomqtzo