A standard Ashkenazi kesuba is a document no different to a post dated cheque; there is nothing religious or holy about it. It says that the man will pay his wife upon divorce or death the sum of 200 ...
In a regular Kesuba we give total 200 Zekukim Kesef. What is the value of that currently in US dollars? Also do you pay the value when you got married or the value at either death/divorce?