Block top - The block number and size of the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for that from address (Keep in mind this begins at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarksea.com/story20560792/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-www-anibookmark-com-user-shoeraven4-html