This is quite fascinating, I hope they find it, I'm surprised they havent just emailed Mojang about it.

Part 2 of the videos mentions that Notch replied, saying that he doesn’t remember where the image is from, and that it’s likely coming from a world generated with a random seed.

Dinnerbone has also commented on reddit threads saying they support the project, but they don't think there's anything else mojang can do to help.