Blockchain and Bitcoin technologies do not only provide a way for a high-availability and high-trust system, but several hybrid applications might be possible as well. The bitcoin blockchain has some several characteristic that could be delegated to other non-Blockchain based systems, such features are for instance the immutability and trust of the central ledger. Considering a non-Blockchain application that want to save certain events in a way that they are high-trusted and immutable for future changes the Bitcoin Blockchain provides an excellent way for that.
