How can I prove when My pronouns were last changed?

Hello! I’ve got a very peculiar person who is currently accusing Me of lying about My pronouns, and saying I changed them within the last two hours to try and trick them. It’s very strange.

I last changed My pronouns in Piefed’s settings yesterday, 17 hours ago, as per this post: https://multiverse.soulism.net/c/piefed_help/p/94882/why-aren-t-my-pronouns-showing-up-next-to-my-name

There’s got to be a log of when they were last changed, right? I’m an admin, I should be able to pull it. How do I prove that My pronouns are what I say they are?