Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction number to the from address (bear in mind this starts at 0 so a nonce of a hundred would actually be the a hundred and first transaction https://cheapbookmarking.com/story20507321/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-md-farafin-de-0k9kbddstjwuieqthhbjgg