Block top - The block selection and duration of your blockchain (in blocks) on creation of the present block Nonce - The transaction selection with the from address (Remember this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted by this https://getsocialsource.com/story5649211/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-500px-com-p-barrkijrooney