Block top - The block variety and duration from the blockchain (in blocks) on development of the present block Nonce - The transaction number for your from address (Keep in mind this starts off at 0 so a nonce of 100 would truly be the a hundred and first transaction https://tbookmark.com/story20414022/blockchain-explorer-fundamentals-explained-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers