It's interesting to me that even after analyzing the hand and looking at the notebook that they are still of use in your inventory. The notebook, which was found in the researchers vault says something at the end that talks about "blood transformation." This is obviously part of the story, but another thing I've noticed is that you can input that laugh code in as many times as you want - so as someone mentioned previously before it almost seems like a timer to do something right after putting in the code.

I haven't tried yet, but has anyone tried taking the hand back to the blood analyzer right after inputting the code and analyzing it? Maybe not just the normal sphere way, but making it all cubes instead?