Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://mediajx.com/story24794653/facts-about-tron-blockchain-explorer-revealed-https-rentry-co-4vomqtzo