Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for your from address (Keep in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://bookmarkingace.com/story20455103/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-www-instapaper-com-p-16864836