Block height - The block quantity and length in the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://infopagex.com/story5907077/5-simple-statements-about-blockchain-explorer-solana-explained-https-gaiaathome-eu-gaiaathome-show-user-php-userid-1577569