system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do you know that producers who say "Half of our income of our product goes to charity" actually do so?

I mean do they have to build credibility over time or is there some kind of contract they can sign?

For organisations I think there are contracts who "force" them to spend the money right but is there something a solo producer can do to build credibility by signing something so people can be assured that the money they spend isn't wasted?

(I'm asking because I'm planning to do so but have no clue on how rip)
gpt
What they actually mostly say is that half of their profits go to charity. So they just have to manage profits. Say by increasing salaries and bonuses. Or investing in advertising. 

I applaud companies that have a noble mission and contribute back to society, just know it can be manipulated while being done.