Block top - The block selection and size on the blockchain (in blocks) on generation of the present 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://leftbookmarks.com/story20656814/the-ultimate-guide-to-eth-blockchain-explorer-https-www-holycrossconvent-edu-na-profile-rosenberghbnborg32409-profile