Establishing private data collections on IBM Blockchain platform for healthcare applications

Computer Science Engineering

On a healthcare platform, there are multiple bodies such as the drug manufacturers, wholesalers, pharmacies, and patients. These organizations share data about the creation of the drug. However, there are some cases where entities want to keep some data about the drug unseen from the other entities. Consider the example where a manufacturer has arranged different price rates with the wholesalers. They wouldn’t want the various wholesalers to be able to see the differing negotiated drug rates. Having all entities on the same blockchain channel would congenitally make every transaction between any two entities, visible to every other entity. With the introduction of private data collections, certain data parts related with a given transaction can be kept private from other entities. In our project, we showcase one manufacturer, two wholesalers, one pharmacy, and one patient that are connected on the same channel on a blockchain ledger. The manufacturer brings about a new drug and sells it at different prices to the two different wholesalers. Only the manufacturer and the patient can see the two varied prices for this example.

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