I have a LONG history with Blender - I wrote some of the earliest Blender tutorials, worked for Not a Number and helped run the crowdfunding campaign that open sourced Blender (the first one on the internet!). I founded BlenderNation in 2006 and have been editing it every single day since then ;-) I also run the Blender Artists forum and I'm Head of Community at Sketchfab.
Wow. Has he released the osl file? Would very much like to have a look...
Hi! You can find the starting shaders in this repository: https://github.com/sambler/osl-shaders
The eggs's one is ChPlanet.osl
When I read the title, I thought someone found an Easter egg (secret / bonus) in the OSL implementation.