Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (Keep in mind this commences at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://doctorbookmark.com/story20267767/the-2-minute-rule-for-blockchain-explorer-solana-https-independent-academia-edu-drewandreassen4