Block height - The block amount and size with the blockchain (in blocks) on generation 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://thebookmarklist.com/story20188169/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-demilked-com-author-brokerwhorl5