Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarklethq.com/story20572498/blockchain-explorer-search-an-overview-https-www-hulkshare-com-circledrop4