Funny thing! I was added two sites like this to my startup/project list earlier today:

https://bitcointalk.org/index.php?topic=829789.0

I added this to the list too

Seems like Projects like these are popping up everywhere (contracts using the blockchain). It will be interesting to see if these products actually take off. I for one hope they do 

So how are you different from these two?

• https://blocksign.com/
• http://www.proofofexistence.com/about

And good work on the site!