Block top - The block variety and length in the blockchain (in blocks) on generation of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://nybookmark.com/story22181729/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-www-holycrossconvent-edu-na-profile-rosenberghbnborg32409-profile