Block top - 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 at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) Contract https://yoursocialpeople.com/story5718275/explorer-blockchain-base-an-overview-https-www-rosewood-edu-na-profile-engelhczrussell69263-profile