Block top - The block range and duration from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety with 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://maximusbookmarks.com/story20667184/explorer-blockchain-base-an-overview-https-www-holycrossconvent-edu-na-profile-rosenberghbnborg32409-profile