Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://thefairlist.com/story10360808/the-blockchain-explorer-address-diaries-https-numberfields-asu-edu-numberfields-show-user-php-userid-6240092