Block height - The block amount and size on 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 one hundred and first transaction submitted https://thefairlist.com/story10360582/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-atavi-com-share-xftxdaz1pgsb4