There's no way in the world you can tell because it really could be from any one of of the inputs. Even if they guessed... there really is no hard "proof" that it's really true with undeniable plausibility.

Thanks to IE delayed but this is a heavy zoom in on that transaction with just 1 level of in/out selected (excl. the other TX's in those blocks) on my poc/alpha site: Coins flying everywhere

btw: im pretty sure atm i can comment out my code to identify wallets after rc7
nice picture. how did you create it?
A study project of mine, a interactive visual blockchain. Beta testing open within two weeks from now, Of course XC exclusive although im thinking of combining BTC next to it to get more people to notice XC.
But with all the anon testing going on in the last week i have a lot of performance tuning to do, those transactions are getting pretty complex atm.
And of course a big f.ck you to Internet Explorer for this delay by breaking all standards at will
Impressive stuff! looking forward to this.