Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://binksites.com/story10018417/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-500px-com-p-barrkijrooney