Yes like I said there are articles and fancy media coverage but the industry isn't just ready yet.
Replying to your second quote, patient data can be immutable and still be updated. Redundancy is always a great thing, and so is record keeping, and that is what this would involve. If the patients data needs to be updated, the new data will be stored, thus still having the old record accessible and unchanged.
That makes sense! But again the authority who is allowed to change the data must be verifiable publicly otherwise false data could also be updated.It isn't easy as it sounds to be honest.