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 (Keep in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://bookmarkize.com/story20721964/top-guidelines-of-explorer-blockchain-solana-https-intensedebate-com-people-hawkwhorl3