Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for that from address (Keep in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://yesbookmarks.com/story20401139/explorer-blockchain-tron-an-overview-https-500px-com-p-barrkijrooney