I can provide supporting evidence. Whether you consider that evidence "proof" is up to you.
"In general, the person or party making an argument has the burden of proof to justify it (whether they argue that something is true or false). This applies, in particular, to situations where someone challenges a prevailing
status quo or a well-established idea.
In a debate, the burden of proof lies typically with the person making a claim; the opposing side doesn’t have a burden of proof until evidence has been provided for the original argument. However, once the evidence has been provided, it’s up to the opposing side to show if the evidence is insufficient. If the opposing side argues that your claim is invalid, then, in turn, the burden of proof is on them to justify the disagreement." -
Burden Of Proof Fallacy: Who Has The Burden of Proof and Why? - Fallacy In Logic