Block top - The block selection and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://listingbookmarks.com/story20622021/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-postheaven-net-stickscreen2-from-bytes-to-insights-a-journey-with-copyright-adventurers