Secure Provenance?

[evomimic]

How do we prove completeness and accuracy of an Observation made by healthcare provider X via response R to healthcare provider Y, without giving Y access to the hsd hApp (between subject and X) through which R was provided?

The goal is to address a key barrier to PHR adoption by allowing clear provenance and data integrity to be established for the health card. Health care practitioners (e.g., physicians) are reluctant to trust health records that have been in patient custody out of concern the record may be incomplete or have been altered. Because the hsd stores each HealthCard in an immutable, non-forgeable and non-repudiable way, healthcare practitioners can be confident that the observation or diagnostic report is complete and unchanged (but only if we can solve this design issue!).