Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity for that from address (Remember this starts off at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract https://bookmarkity.com/story20500683/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-forum-issabel-org-u-optionray7