Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmark-rss.com/story20506015/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-forum-issabel-org-u-optionray7