Block top - The block number and duration with 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 actually be the 101st transaction submitted by this account) https://push2bookmark.com/story20384435/the-blockchain-explorer-address-diaries-https-coveruncle7-werite-net-blockchain-explorers-the-key-to-comprehending-copyright-transactions