>>620423
Count the number of digits in that filename. Then click the (u) on any image here and count the number of digits. That is certainly not an 8chan filename; here we only go to seconds, while cuckchan and other sites (e.g. bunker boards) generally go to milliseconds. We used to go to the same precision, but we stopped long before 1519x.
It could still be other sources than cuckchan, but since it's apparently some e-celeb or camwhore, cuckchan seems most likely place for OP to have gotten it. Not to mention he still uses /pol/.
That said, c7725b is also a faggot.