Hello there,

I'd like to know if CSV files may be trusted.

EXPLAINING EXAMPLE: In my Shopify store, I offer items.

These are digital items, but that doesn't really important for the purposes of what I'm about to tell you.

Every product has an author, and I am not one of them.

Every month, at the conclusion of the month, I have to pay each author his or her profits %.

Assume Peter is an author who sells a product in my shop.

His product sells 100 units every month, with a total revenue of $1,000.

We've established a contract in which we both agree that he should receive 70% of his entire profits.

As a result, I must pay Peter $700.

So far, so nice... but there's a problem...

How can I demonstrate to Peter that his product sold precisely 1000 units and not 990 or 1190?

I considered emailing him a screenshot of the statistics... but he could believe it was a forgery.

What can I do?

Is there a certain method to prove the truth to him? Are CSV files acceptable? Are they unchangeable?

What should I do if that is not the case?