Block top - The block number and length in 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 a hundred and first transaction submitted https://bookmarkfox.com/story5838044/explorer-blockchain-tron-an-overview-https-www-instapaper-com-p-16864836