Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://networkbookmarks.com/story20804355/top-guidelines-of-eth-blockchain-explorer-https-setiathome-berkeley-edu-show-user-php-userid-13199150