Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://total-bookmark.com/story20311883/explorer-blockchain-tron-an-overview-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain