Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://bookmarklinkz.com/story20146795/5-simple-statements-about-blockchain-explorer-solana-explained-https-coveruncle7-werite-net-blockchain-explorers-the-key-to-comprehending-copyright-transactions