Block top - The block amount and duration on the blockchain (in blocks) on creation of the present block Nonce - The transaction amount for your from address (Remember this starts off at 0 so a nonce of one hundred would basically be the 101st transaction submitted by this account) https://bookmarkuse.com/story20358733/not-known-factual-statements-about-blockchain-explorer-tool-https-www-instapaper-com-p-16864836