Block top - The block range and duration on the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (Keep in mind this begins at 0 so a nonce of 100 would basically be the 101st transaction submitted by this account) https://bookmarksaifi.com/story20448484/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-notes-io-ww2s8