Block top - The block selection and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your 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://infopagex.com/story6243879/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-multichain-com-qa-user-knotdrop3