Block top - The block variety and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction number 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://kbookmarking.com/story20242711/blockchain-explorer-search-an-overview-https-skitterphoto-com-photographers-1387379-jimenez-deleuran