Block top - The block number and length of your blockchain (in blocks) on creation of the present block Nonce - The transaction selection for your from address (Keep in mind this starts off at 0 so a nonce of 100 would basically be the a hundred and first transaction https://socialtechnet.com/story6062155/top-guidelines-of-eth-blockchain-explorer-https-www-bitsdujour-com-profiles-iptrcw