Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (Keep in mind this commences at 0 so a nonce of 100 would basically be the one hundred and first transaction submitted https://bookmark-group.com/story6394798/explorer-blockchain-tron-an-overview-https-www-bitsdujour-com-profiles-iptrcw