[Xenoamorphous]

Does any one have some resources where a real, practical example is implemented? Because I can only find fairly theoretical resources but not real world examples.

Say, like how some simple CMS would work with a datastore like this. What does the event to update the headline of an article look like? How are integrity constraints enforced, e.g. an article can't reference an author that doesn't exist? Things like that.

[lamp_book]

Similar enough is double entry bookkeeping and generally I think event sourcing is more common for fraud detection, log analysis for security, etc. - use cases where how the application got in its state is as important as the state.