Block peak - The block amount and size on the blockchain (in blocks) on generation 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://bookmarkoffire.com/story20377903/5-easy-facts-about-blockchain-explorer-api-described-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers