Block top - The block number and size in 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://totalbookmarking.com/story20620286/not-known-details-about-explorer-blockchain-ton-https-www-bitsdujour-com-profiles-iptrcw