Block top - The block amount and size on the blockchain (in blocks) on development 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://cheapbookmarking.com/story20313192/not-known-details-about-explorer-blockchain-ton-https-skitterphoto-com-photographers-1387379-jimenez-deleuran