Block height - The block amount and size in the blockchain (in blocks) on development of the present block Nonce - The transaction range 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://checkbookmarks.com/story6300557/what-does-eth-blockchain-explorer-mean-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers