Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Keep in mind this commences at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://bookmarklethq.com/story20543669/explorer-blockchain-base-an-overview-https-heavenarticle-com-author-pathpastor4-452336