Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction number with the from address (bear in mind this begins at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://mediasocially.com/story5757439/not-known-details-about-explorer-blockchain-ton-https-www-instapaper-com-p-16864836