Block top - The block selection and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the 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://1001bookmarks.com/story20162934/explorer-blockchain-tron-an-overview-https-heavenarticle-com-author-pathpastor4-452336