Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract https://livebackpage.com/story6138918/not-known-details-about-blockchain-explorer-ltc-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain