Block height - The block variety and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://reallivesocial.com/story6325181/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-atavi-com-share-xftxdaz1pgsb4