Yes. Code or documentation on this is crucial to make it really last. edit: Found this on their website under "Every Totenpass is unique": > Or you may choose

Yes. Code or documentation on this is crucial to make it really last. edit: Found this on their website under "Every Totenpass is unique": > Or you may choose to store thousands of documents or photographs to be retrieved at a later date using our proprietary reading technology and smartphone app. So open source or well documented is probably not the way to go.