Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (bear in mind this begins at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://letsbookmarkit.com/story20472137/not-known-details-about-blockchain-explorer-ltc-https-rentry-co-4vomqtzo