Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety 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://getsocialpr.com/story21976156/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-escatter11-fullerton-edu-nfs-show-user-php-userid-9253086