"confirming on" is not correct and usable in written English.
You can use the phrase "confirming" when you want to state that something is true or has been verified to be true. For example: I just received confirmation from the hotel, confirming our reservation for this weekend.
But Comedy Central brought that possibility one step closer to coming true, confirming on Wednesday morning that the next featured guest in its roast series would be James Franco, the actor, writer, director and student of life.
The transcript from the Till trial has long since disappeared, but news stories of the period quote Cothran saying that white people felt "pretty mad" about the killing and confirming on the stand that the body pulled from the river was the one identified by Mose Wright as the missing boy.
PlayStation owners are confirming on Twitter that the service is working.
All through the Estrada fight, the Senate has been confirming, on average, six federal Bush judicial nominees a month.
This week, he has been at it again, confirming on an Italian talkshow that he is planning to release Kill Bill: Vol 3 in 2014.
Variety reports that Bardem was in talks for Frankenstein, with the journalist later confirming on Twitter that he was referring to the doctor's creation, not the doc himself.
A linear temperature coefficient of 47 ppm/K was estimated in flight, confirming on-ground measurements for each of the ASM axis transfer functions, again in agreement with the intrinsic properties of the amagnetic PEEK polymer used for the ASM sensor head.
The atheroprotective effects of 11β-HSD1 inhibitors were recapitulated in genetic deficiency of 11β-HSD1, confirming on-target actions.
That was confirmed on Tuesday.
His death was confirmed on Thursday.
That impression was confirmed on 52 minutes.
