Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract creation https://nybookmark.com/story22575315/explorer-blockchain-base-an-overview-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers