Apostille is a holistic blockchain notarization system. In this system, notarizations are not static one-time timestamps, but instead can now be dynamic, moving, changing, and updatable values on the blockchain.
The LuxTag solution is a real-life-notarization certification solution to prevent counterfeit (proof-of-authenticity), theft (proof-of-ownership), and to offer big-data to brands which is implemented on the blockchain
KRS is great when a user wants to use a third-party service (e.g., a wallet), but wants to make sure he can access his funds if the service shuts down, he forgets his password, or he loses faith in the service.
Landstead uses NEM blockchain technology to create a registry of land and property, allowing government and citizens to co-create an open blockchain system that can be trusted and consulted by interested parties.