CryptoSign
We've built a platform on blockchain to digitally sign documents so as to overcome Repudiation, Tempering, Trust, Privacy issues that usually arises with them. A decentralized docusign in a nutshell.
About
The problem it solves I'll list it out. 1. Non - Repudiation: Our service provides proof of the integrity and origin of data. 2. Temper - Proof: A user cannot temper with the once signed documents. 3. Easy Verification/Proof: An Employer/User can easily verify/prove the documents' signature. 4. Trust: For some, trusting a third party company to hold their signature records indefinitely, and not to accidentally or maliciously discard or corrupt them, may not be an acceptable risk. 5. Privacy: some digital signature services require the file to be uploaded to their cloud server for signing, resulting in privacy issues 6. Seamless Interface: We are trying to bring blockchain technology to masses 7. Open Source: Finally, and most importantly, our product being open source gives us a huge advantage as mentioned above.
How it's made
Challenges we ran into One of the issues we faced was figuring out how to store a possibly sensitive data on a blockchain without exposing the user's privacy & trying to make the interface seamless. We come up with a somewhat resonable approach that somehow manages to not only not expose the user's private information, also being completely ignorable for the user.