The Cake Share Certificate template only state the amount 'unpaid'.
The reason the templates do not show the amount 'paid' per certificate, is because this often causes confusion where the shares listed were acquired through different transactions (ie, one as a share issue in a round, and another as a transfer from an existing investor).
As the Cake share certificates are 'holding' certificates (rather than transaction based certificates), the amount paid is not added to avoid confusion.
To find the amount paid, the investor or company should look to the specific transaction document (for example, the Subscription Agreement, or the transfer form). Or, of course, they can check it out in the Transaction History of their Cake Portfolio! 😉
In most jurisdictions, the amount paid is not required on Share / Stock Certificates.