Block height - The block variety and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection with 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://funbookmarking.com/story20480345/5-simple-statements-about-blockchain-explorer-solana-explained-https-canvas-instructure-com-eportfolios-4028322-entries-14252553