I don't understand what patentability of blockchain-based receipt systems has to do with admissibility as evidence.
I doubt if any court will dismiss blockchain as hearsay, when we all know it is tamper proof.
It just means that they want proprietary owned software, where they can have accountability if something goes wrong. At this stage, with the "floating" of the ownership of
the technology... nobody can be held responsible. If Microsoft cause a major f$%# with someone, they can hold someone responsible and they can take them to court. This
is the jewel in Blockchain... It's not owned by a single entity or a group... We are the Blockchain.