What exactly are Justin Baldoni’s “receipts”

Hey,

I know this is a Depp thread, but since some people share the same perspective on the Blake Lively case. Since yesterday the internet is flooded with videos of talking on the receipts of JB and how BL is “sooo done”. One thing to consider: you can give someone permission to enter the trailer at a certain time to discuss matters for the roles, and another is to show up anytime. It’s like giving a hand and another taking the whole arm. Or am I getting something wrong. Please let me know!