Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://dmozbookmark.com/story20617245/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain