The usual problem with medical records is keeping them from being seen, not keeping them from being altered. I don't see how a blockchain would solve the former issue.
More Blockchain BS.
It's a solution in search of a problem. Pure smoke and mirrors.
What advantages does this offer over what is done currently? I assume the block chain enables someway to stop them copying it once they have access?
It mentions that one quarter of cancer is missed during mammogram diagnosis. How is this exactly known, do second opinions from other doctors also review the mammogram or is it assumed missed after a patient that was cleared develops cancer?
They should clarify this, as to me it seems impossible to know how often it is missed initially.
What do they actually encode in each block? I can't imagine that it would be anything useful.
Many people here seemed concerned with how Blockchain can be used to accomplish this because the article is sparse on details. [Here is a proof of concept PDF](https://enigma.co/ZNP15.pdf
) which covers a method [and here's the IEEE link just incase](http://ieeexplore.ieee.org/document/7163223/
). [Here is an IEEE paper](http://ieeexplore.ieee.org/document/7965711/
) about a similar phenomenon, using Blockchain to anonymize data-sets and trade them. Proofing both articles is above my pay-grade, but considering both papers have similar concepts and neither share an author I'm included to at least think the papers aren't crazy.
Blockchain is more than just a currency platform, even though that's pretty much all we hear about.