Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://thejillist.com/story10955514/getting-my-blockchain-explorer-ethereum-to-work-https-www-instapaper-com-p-16864836