>>3476999Most can be found in the file names. They start with a series of random numbers, which is the picrew's URL. For example,
>>3476847 starts with 98952, so its source would be
https://picrew.me/image_maker/98952.
My posts have the source at the end, though. Like how pic related ends in 249262, so it'd lead to
https://picrew.me/image_maker/249262