Block top - The block amount 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://bookmarkstime.com/story21454117/blockchain-explorer-search-an-overview-https-www-multichain-com-qa-user-knotdrop3