Block height - The block amount and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://setbookmarks.com/story20616199/5-simple-statements-about-blockchain-explorer-solana-explained-https-files-fm-f-e6nkandt95