Retirement tax questions

Thanks for your answer.  

 

I was messing around and figured out how to reduce my tax for 2022.

 

I originally took it out of a 401k but because I switched jobs and had to move money out of that 401k to an IRA, I could only repay it this year to an IRA.

 

When I put the repayment amount into a tradition IRA, it didn't deduct anything.   So I had to put the repayment amount into "Repayment made to any other type of retirement plan" in order to reduce my taxes.

 

My new question is how do I prove to the IRS I made the recontribution?