BCDOCUDEMO is an App for educational purposes, which allows to explore the value of blockchain in connection with notarization, mainly that the party which creates a record on blockchain was in possession of information and data at a certain point in time. The App makes use of the unique feature of blockchain to maintain a tamper proof timestamp of everything that is written. In addition it uses a cryptographically secured way to proof authenticity and origin of the data. Writing data to blockchain is usually a difficult task, but with BCDOCUDEMO it becomes simple and can be performed by anyone without the need of a third party. The App allows to take snapshots or upload files and proofstamp them on blockchain. In combination with the Web Application of BCDOCUDEMO, which requires neither login nor any installation to view and read data, the App is a powerful tool for privates and businesses alike to learn how blockchain technology can help with a wide variety of legal challenges.