Help with Possible Hack ID - 10 ANIV Charizard Shiny

Hi all, not sure if this is where this goes but,

I received a shiny Charizard via trade today on SS, I looked it up and found that none were meant to be shiny, with a few exceptions apparently. This is what it should be I think



And here's mine, everything matches except the date and the fact that its shiny



Also, it plays online on battle rev, which makes me think its real, as a hacked Darkrai that I had wouldnt

So what do you guys think, It looks to have been around a while. I read that some were released Shiny but Im not sure.

Release or not to release?