Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarkhard.com/story20663933/explorer-blockchain-tron-an-overview-https-atavi-com-share-xftxdaz1pgsb4