Block height - The block amount and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://bookmarkmargin.com/story20569538/explorer-blockchain-base-an-overview-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers