Well, i might sound like crazy or a liar, but here it goes:
Today i have received my 5900x and i´ve finished installing it a while ago. After that i was taking photos to put my 2700x for sale. I took the wraith cooler from the box, because i replaced the cooler a few weeks after getting the 2700x. And i saw this.
Crazy stuff.
When i got the 2700x, the first thing i did was to clean the cooler with isopropyl alcohol 99% and kitchen paper. Then i installed the cooler and used thermal grizzly hydronaut. After a few weeks i´ve removed it, cleaned it and i had a problem with the backplate of my new cooler(broke it, since it was made of plastic), so i´ve installed the wraith prism again. Then i ordered a new cooler(arctic 34) and i removed the wraith prism.
I cleaned it with isopropyl alcohol 99% and kitchen paper again,put it in the original box, and put it on a shelf on my storage.
Today i grabbed the box, took the cooler and saw this. I looked perfectly clean when i packed it, and i rubbed it a lot. But even looking completely clean, the paper always came with a silver color. Maybe some thermal paste was on the microscopic holes in the copper, and after some time(1 year and 4 months), the gravity pulled that down and formed this hexagonal shapes. And the square looks perfect also. Or maybe an entity from beyond wants to talk to me...
And thats it. Isopropyl alcohol 99%, kitchen paper and thermal grizzly hydronaut. If someone sees something similar, i doubt that your cooler is haunted.