Block top - The block range and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction amount for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmarklethq.com/story20187304/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-www-webwiki-it-cryptoexplorerhub-com