Block top - The block quantity and duration of your blockchain (in blocks) on development of the current block Nonce - The transaction variety 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://bookmarkinglive.com/story21271552/explorer-blockchain-base-an-overview-https-www-webwiki-co-uk-cryptoexplorerhub-com