Even using your analogy it sounds ridiculous to me, I have to prove to you I made a cake without someone else's recipe? Do I have to take a recording of me tying my shoelace as well or you won't believe that I tied my shoelace this morning? What on earth?
Do I really need to break it down to you?
The shoelace analogy doesn’t make sense here because tying your shoelaces is something obvious that no one questions—it’s a basic action, and originality isn’t part of the claim. But if you said you tied your shoelaces in some revolutionary way no one’s ever done before, then yeah, people might want some proof.
Same thing with the cake—it’s not just “I made a cake,” it’s “I made a cake without anyone else’s recipe.” That’s a different level of claim that naturally invites questions, especially since it’s not even the creator making the claim here, but someone else speaking for them. Bloodbringer even used this originality claim as a way to advertise or suggest an option to the OP without backing it up with any proof.
So yeah, asking for proof in that context isn’t ridiculous—it’s just logical.
And btw I never even demanded proof, I just pointed out that none of us can confirm whether it’s true or not and left it at that, but I'm not the one doing a claim without proof to advertise/suggest an option to the OP, that's the difference.
Anyway, this discussion’s going nowhere, and I’ve already made my point, so I’m done here.