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- A Hyperledger Fabric network will be created. Inside the network, multiple channels will be created i.e each channel will create a subnetwork of Organ Procurement and Transplantation Network ( OPTN). These channels will be interoperable. The architecture and working of each channel will be determined based on the need and rules of a particular jurisdiction on how to design the OPTN i.e which organizations will form the channel, what rules will be coded into chaincode, which entities should be given permission to perform transactions. The idea behind this is to increase accessibility by increasing the number of organizations that parallelly serve different entities and these organizations collectively form a subnetwork with a shared ledger/state for better coordination, communication, and governance. Multiple OPTN can communicate i.e interchannel communication to further increase governance.
- Organ donation consented will be represented and presented in form of "Verifiable Credential (VC)". Each donor will carry donation consent in his phone and this consent can be cryptographically verified using an SSI ledger in which "Credential Definition" of the "Verifiable credential was defined". The verification will reveal
- Which organization collected the consent from the donor and issued the donation consent in form of VC
- The donor who gave the consent.
- The data in the VC, which could be blood type or health status etc
- The data in the VC has not been tampered. is in its original form as it was when issued and the same data is presented.
Problem
There are three related problems that need different solutions.
- Centralized Organ Procurement and Transplantation Network (OPTN).
- Solution: Different Organisations can collectively maintain the network (decentralization).
- Siloed Transplant Coordination Network.
- Solution: Different Organisations can collectively maintain the network (decentralization)OPTN sub networks can communicate to have better-coordinated action.
- Non-interoperable silos manage the organ donation consent given by donors.
- Solution: Using Verifiable Credentials to represent different claims which can be efficiently verified while protecting privacy.
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(Work in progress. Will finish in next 2-3 days)
A network will be created using Hyperledger Fabric and multiple channel/subnetworks will be created for each OPTN under different jurisdictions and based on requirements. An identity metasystem or an SSI ledger will be either be created inside the network as a subnetwork or a third-party identity metasystem network like "Indicio" or "Sovrin" will be used or different entities and organizations can use multiple SSi identity metasystems to issue Verifiable Credentials and we aim to design our project to process VC from multiple SSI networks.
Verifiable Credentials will be used for
- Processing of Medical Records. In UNOS, every 9 minutes a patient is added, processing and storing a huge volume of medical data would result in an increase in overhead cost, and not storing and non-processing of data at different decentralized nodes would create a potential for manipulation of organ allocation for transplantation.
- Donation Management.
- Portable and Cryptographically verifiable donation permit Issued by NGO: Hospitals can directly communicate with the donor and cryptographically verify that donor has given consent and consent was collected and donation permit was issued by authorized organization.
- Authentication of Donor: Cryptographically the donor can authenticate his identity to NGO that issues a donation permit, the NGO can build upon this identity and issues donation consent against this identity. Further, the donor can authenticate himself cryptographically to any verifier of donation consent.
- Guardianship Authorization and management.
