Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (Keep in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://travialist.com/story11047744/explorer-blockchain-tron-an-overview-https-atavi-com-share-xftxdaz1pgsb4