Last updated 3 months ago
Health data access is fragmented, unverifiable, and lacks secure consent. Clinics and patients have no reliable way to prove ownership, trace access, or audit how medical data is used.
We anchor health data proofs and consent events on Cardano, enabling patient-owned permissions, verifiable access logs, and tamper-resistant clinical audit trails.
Please provide your proposal title
Health Data Anchoring and Consent Protocol on Cardano
Enter the amount of funding you are requesting in ADA
200000
Please specify how many months you expect your project to last
10
Please indicate if your proposal has been auto-translated
No
Original Language
en
What is the problem you want to solve?
Health data access is fragmented, unverifiable, and lacks secure consent. Clinics and patients have no reliable way to prove ownership, trace access, or audit how medical data is used.
Supporting links
Does your project have any dependencies on other organizations, technical or otherwise?
No
Describe any dependencies or write 'No dependencies'
No dependencies
Will your project's outputs be fully open source?
No
Please provide details on the intellectual property (IP) status of your project outputs, including whether they will be released as open source or retained under another licence.
Proprietary elements, such as production datasets, clinical UX, and enterprise implementation playbooks, remain retained IP. In addition to, our core technology, innovations, and methodologies are protected intellectual property. Smart contracts, some SDK modules, and integration APIs will be publicly available to accelerate adoption. All on-chain logic and related libraries enabling consent, anchoring, and audit events will remain freely accessible.
Please choose the most relevant theme and tag related to the outcomes of your proposal
Healthcare
Describe what makes your idea innovative compared to what has been previously launched in the market (whether by you or others).
Healthcare systems globally face the same core issue: control of patient data lies with institutions, not individuals. Existing records systems rely on siloed databases that cannot be independently verified or shared safely. Even when blockchain is attempted, prior efforts have focused on tokenization, identity NFTs, or basic notarization, often without clear clinical context or real-world integration.
This proposal is fundamentally different.
We treat the clinical record not as a single object, but as a sequence of attestations linked to verifiable consent. Instead of storing raw health data on-chain, we anchor:
This creates cryptographic accountability, while keeping sensitive data off-chain.
Most blockchain health projects start from crypto-first assumptions and struggle to integrate with:
UzimaNexus already integrates:
This means Cardano becomes a trust layer, not a marketing add-on.
Previous Cardano health proposals anchored static documents or were pilots without sustained usage. Our design uses blockchain as a live transactional substrate, not a certificate store.
Every meaningful healthcare event becomes a verifiable on-chain action:
This ensures network participation, not passive storage.
Hospitals already spend millions on compliance, risk audits, and credentialing. We replace:
With a tamper-proof clinical audit trail where every action has:
We integrate Cardano next to clinical workflows, not instead of them.
This enables ecosystem growth—developers can adopt the anchor layer without reinventing healthcare.
Describe what your prototype or MVP will demonstrate, and where it can be accessed.
The MVP will demonstrate a working, testnet-deployed system enabling:
Patients generate digital consent tokens with:
When a clinician performs an action (e.g., viewing imaging metadata), the system stores:
No clinical data is stored on-chain.
Only cryptographic proofs.
Patients can revoke permissions and immediately restrict further actions.
Revocations are also on-chain for accountability.
A hospital or researcher can request a verifiable proof of access.
The system responds with a chain of anchored events.
Healthcare partners and Cardano community members can interact directly, generate tokens, perform access-bound actions, and review audit histories.
Describe realistic measures of success, ideally with on-chain metrics.
A successful healthcare data integrity protocol must be measurable in a way that reflects real clinical value, not just technical achievement. UzimaNexus is designed with quantitative and qualitative KPIs that demonstrate adoption, trust, consent utilization, and interoperability across institutions.
We expect sustained on-chain events generated by real workflows:
Metric Target (6–9 months)
Consent issuance ≥4,500
Data access logs ≥10,000
Revocation events. ≥2,000
Research participation ≥700
Each result represents authentic behavioral events, not vanity metrics.
A successful prototype unlocks:
These environments will produce steady transactional demand, benefiting the network.
Please describe your proposed solution and how it addresses the problem
UzimaNexus proposes a Cardano-based clinical data anchoring and patient consent protocol that enables healthcare institutions to create immutable, verifiable hashes of medical records on-chain while keeping actual medical files stored securely off-chain. Patients retain full ownership of their health data and use programmable access consent contracts to determine who can view specific documents and for what clinical purpose.
This approach solves the core failures of current systems—data loss, fragmentation, duplication, fraud, and lack of verifiable provenance—by replacing informal, trust-based exchanges with cryptographic proof of authenticity. Instead of hospitals or insurers calling each other, sending scans via social media, or emailing PDFs, clinical actors can reference an anchor hash tied to a patient wallet, time-stamped and publicly auditable on Cardano.
Layer 1: Clinical Data Anchoring (Cardano On-Chain)
When a hospital, lab, imaging center, or specialist creates a record, the system generates a cryptographic hash of the data. That hash is anchored to Cardano via a smart contract or transaction metadata. The anchor includes:
This delivers three guaranteed cryptographic properties:
No medical data is stored on chain. Only proofs.
Layer 2: Consent Contracts
Patients or guardians control access through smart contracts that:
A patient may, for example, allow:
“Dr. A can access MRI scans from Hospital X for 30 days.”
When a specialist requests access, the contract checks permission. If approved, the off-chain reference decrypts and serves the encrypted file through our API. Logs of these actions are written back to Cardano to maintain a transparent audit trail.
A. Legal alignment
B. Drives real adoption
Hospitals already use EMRs, HIS, RIS, LIS, PACS. Our SDK connects to those systems:
Healthcare stakeholders don’t need to become blockchain experts. They simply:
1. Provenance
Medical records currently travel across Kenya and Africa with zero cryptographic guarantees. Radiology CDs, printed lab reports, and emailed attachments are trivial to forge.
Cardano anchoring prevents fraud by tying each record to:
Forgery becomes cryptographically detectable.
2. Fragmentation
Patients accumulate records across multiple providers, often in different cities. Even in digitized facilities, EMR systems are siloed.
Our protocol aggregates integrity proofs in a single patient-owned ledger, regardless of where care was provided.
3. Missing or Lost Data
Patients lose CDs, printed reports, and even patient files. Providers often demand repeat imaging.
Anchoring ensures:
This directly lowers cost, risk, and radiation exposure.
4. Insurance & Claims Fraud
Insurance approvals are delayed because:
With anchored clinical proofs, insurers simply check:
Does this record hash match what was generated by the issuing provider?
If yes → claim validated.
If no → claim rejected instantly.
A. Patient-first identity model
Cardano is uniquely aligned with verifiable credential frameworks and self-sovereign identity. Patients do not need to trust a central database—their identity anchors their history.
B. Finality and governance
Clinical anchors must be auditable years later:
Cardano’s immutability and governance stability provide long-term reliability.
C. Low fees + predictable cost
Healthcare operates at scale:
High fees kill adoption. Cardano ensures anchoring is affordable at thousands or millions of events.
A conventional centralized cloud or hospital EMR still leaves core problems unsolved:
Private blockchains have one fatal flaw:
"Whoever controls the node controls the truth."
Cardano provides global neutrality:
Healthcare consumers deserve a neutral infrastructure.
Because our model does not expect clinicians to change how they work.
Blockchain is invisible behind:
We solve real pain points, not hypothetical Web3 problems.
It replaces a trust-based health system with a verification-based system.
Right now:
With UzimaNexus:
That single shift eliminates:
And most importantly:
Please define the positive impact your project will have on the wider Cardano community
Our project creates a bridge between a high-demand real-world industry—healthcare—and the Cardano ecosystem. Healthcare data is among the most valuable and sensitive categories of human information. Today, it is fragmented, unverifiable, and siloed in back-of-house hospital systems that offer no guarantees of provenance or integrity. By introducing a patient-governed healthcare anchoring and consent protocol on Cardano, we materially expand the network’s utility into the largest information economy after finance.
Healthcare is not a “nice to have” vertical—it is a constant, daily source of transactions:
Each of these can be cryptographically anchored:
→ one Cardano transaction per clinically relevant record or consent event.
This project does not rely on speculative DeFi volume or user incentives. Instead, it produces sustainable, organic demand driven by real-world clinical workflows. In regions like Africa, where digital health records are inconsistently managed, this can translate into millions of events per year once deployed at scale.
Cardano has demonstrated excellence in DeFi, governance, on-chain identity, and proof-of-stake sustainability. However, real-world utility that touches lives daily is still underrepresented. Healthcare is the ultimate public infrastructure. When Cardano becomes the ledger of clinical integrity, medical authenticity, and patient consent, the ecosystem gains a socially important and politically defensible use case.
Unlike games, NFTs, or speculative markets, governments do not shut down infrastructure that reduces fraud, prevents unnecessary radiation exposure, protects patient rights, and improves insurance efficiency. This creates a policy tailwind rather than regulatory friction.
Our approach strengthens Cardano’s identity position. Instead of DID being used only for wallet logins or membership verification, we tether DID to critical human documentation:
This expands identity from identity-as-access to identity-as-health-continuity. When patients use their keys to authorize medical record access, self-sovereign identity becomes tangible and life-relevant.
Many blockchain initiatives try to replace existing hospital databases. That approach has failed for 10 years. Hospitals will not abandon their EMRs, LIS, RIS, or PACS systems. They will, however, layer tools that protect liability and reduce operational waste.
Our protocol integrates through SDK/API, allowing:
This allows healthcare institutions to keep their internal systems, while Cardano becomes the global truth layer.
This model is mass-adoptable because:
By publishing SDKs, smart contract templates, and integration documentation:
We want Cardano engineers to extend our primitives into:
Every extension benefits Cardano and its user base.
Healthcare systems in Africa, Latin America, India, and Southeast Asia are leapfrogging legacy Western architectures. They do not have entrenched incumbents like Epic, Cerner, or Allscripts. They are hungry for open, trustless, low-cost infrastructure.
If Cardano becomes their anchor:
This gives Cardano:
What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?
Delivering a healthcare-grade blockchain system requires not only technical maturity but also operational reliability, regulatory compliance, and an understanding of clinical workflows. UzimaNexus is positioned to deliver this project with trust because of our technical background, our institutional partnerships, and our real-world operating environment in Africa’s healthcare ecosystem.
UzimaNexus is led by professionals who have spent years working at the intersection of biomedical engineering, AI, blockchain infrastructure, and regulated data environments. Our engineering leadership has built digital health systems that integrate imaging modalities, HL7 FHIR, DICOMweb, and EMR/PACS ecosystems. This gives us practical insight into where blockchain fits—not as a buzzword, but as a trust layer that solves real bottlenecks in care delivery.
We deeply understand clinical realities:
Because we operate in markets where healthcare infrastructure is incomplete, adoption must be frictionless to succeed. Blockchain should be invisible to doctors and patients. This mindset shapes our delivery capability and accountability: we focus on anchoring data integrity and consent flows, not trying to replace existing health systems.
UzimaNexus has built and deployed working systems, not just demos. Our architecture already integrates:
These experiences demonstrate feasibility beyond theory. Our core infrastructure has been designed to survive real hospital environments with poor connectivity, unreliable power, and diverse digital maturity levels. This ensures we are accountable to actual users, not just blockchain metrics.
We have already been onboarding healthcare institutions across Kenya and have managed to come up with a huge waitlist of over 500 facilities. These environments are extremely risk-averse: if systems fail, clinicians suffer and patients get hurt. Gaining early institutional partners is itself a credibility marker. Hospitals and diagnostic centers have chosen to collaborate with UzimaNexus because:
These partnerships provide real test beds to validate our approach.
Healthcare demands more than innovation—it demands a compliance posture. Our team has designed systems guided by:
Blockchain does not absolve us of regulation; it increases the need for disciplined data governance because transactions are permanent.
UzimaNexus keeps payloads off-chain. We store only:
No patient health data or images are stored on-chain. This demonstrates responsible engineering and legal defensibility.
We are part of the Techstars + Cardano Founder Catalyst Program, which provides:
This is significant because it means:
Participation in this program provides institutional credibility, not just narrative credibility. We understand how Cardano funding must be deployed responsibly and measurably.
We will operate with high accountability by providing:
Transparency is not a feature—it is a governance design.
We will deliver in practical increments:
Each milestone is testable by third parties. Our cadence will allow both community and institutional stakeholders to validate progress.
We validate feasibility at three layers:
A. Technical Feasibility
B. Clinical Feasibility
If a doctor doesn’t adopt the system, the system has failed—no matter how elegant the chain design is.
C. Ecosystem Feasibility
Blockchain projects fail when they treat users as transactions. We are treating users as lives.
We acknowledge real risk:
Mitigations include:
Risk is handled with documented, clinical-grade engineering discipline.
Cardano’s decentralized infrastructure allows third parties to verify:
We will expose this to the community through:
If we fail to generate measurable anchor events and revocation events, the community will see it instantly.
We are not building a fantasy blockchain dream—we are solving a problem that costs African families money, dignity, and health outcomes daily. We are already in the field, and our architecture is designed around existing workflows.
Most importantly:
Milestone Title
Core Contract Architecture: Anchoring & Consent Lifecycle
Milestone Outputs
We will design and implement the core smart contract architecture that powers medical data anchoring and patient-controlled consent. This includes:
Contracts will be designed for:
Outputs also include:
The deliverable is a working testnet deployment of the core protocol.
Acceptance Criteria
Evidence of Completion
Delivery Month
2
Cost
60000
Progress
20 %
Milestone Title
SDK & Anchoring API Gateway for Health Systems
Milestone Outputs
We deliver the tooling layer that allows healthcare applications to interact with Cardano without needing blockchain expertise.
Deliverables:
The SDK must allow developers to:
Developer Experience (DX):
Acceptance Criteria
Evidence of Completion
Delivery Month
4
Cost
40000
Progress
30 %
Milestone Title
Mobile & Web App for Patient Consent and Audit Logging
Milestone Outputs
We deliver a patient-facing UI that makes sovereignty and transparency real.
Features:
UX prioritizes:
Backend:
Acceptance Criteria
Evidence of Completion
Delivery Month
6
Cost
30000
Progress
50 %
Milestone Title
Pilot: Clinical Anchoring + Real-World Consent Use Cases
Milestone Outputs
Deploy the system in real health environments.
Pilot objectives:
Institutions:
Hardware + Workflow:
Training:
Acceptance Criteria
Evidence of Completion
Delivery Month
8
Cost
40000
Progress
80 %
Milestone Title
Mainnet Release, Documentation & Ecosystem Toolkit
Milestone Outputs
Turn the project into a community-usable infrastructure layer.
Deliverables:
Sustainability:
Acceptance Criteria
Evidence of Completion
Delivery Month
9
Cost
20000
Progress
90 %
Milestone Title
Project Close-out, Reporting & System Verification
Milestone Outputs
Formal closure of the funded project.
Deliverables:
We ensure long-term sustainability:
Acceptance Criteria
Evidence of Completion
Delivery Month
10
Cost
10000
Progress
100 %
Please provide a cost breakdown of the proposed work and resources
The total project budget of 200,000 ADA is carefully structured to support nine months of intensive development, testing, clinical piloting, and open-source release of the UzimaNexus Cardano health-data anchoring and consent platform. The budget is designed to maximize efficiency, reduce delivery risk, and ensure the Cardano ecosystem receives long-term reusable infrastructure rather than one-off code. Each cost category reflects both the technical complexity of the solution and the real-world requirements of healthcare-grade systems.
Personnel represents the largest portion of the budget because this project requires advanced engineering and specialized domain expertise. Healthcare systems, medical imaging pipelines, patient-consent architectures, cryptographic hashing, and smart-contract design all demand skilled contributors. These costs cover the core team actively developing the platform:
This personnel allocation ensures that all layers — infrastructure, smart contracts, SDK, and user interfaces — are built by capable professionals with direct experience in healthcare systems and blockchain technologies.
A robust infrastructure foundation is necessary for both development and real-world healthcare usage. These funds cover:
This investment ensures that the UzimaNexus system is reliable, secure, compliant, and performant when operating within clinical environments.
A real-world clinical pilot is central to proving Cardano’s value in healthcare. This phase involves:
Pilot implementation is essential for demonstrating practical viability and generating evidence metrics, which will be important for both Cardano and healthcare stakeholders.
One of the most important deliverables for the Cardano ecosystem is the SDK that enables developers to integrate medical-data anchoring and consent features into their own applications. The budget covers:
This transforms the project into a foundational layer that can be reused by any developer working on clinical systems, insurance solutions, identity frameworks, or blockchain-based governance.
Healthcare is a high-stakes sector with strict requirements. This category anticipates:
A contingency reserve ensures the project remains on schedule and capable of handling unexpected but realistic scenarios without compromising quality or scope.
How does the cost of the project represent value for the Cardano ecosystem?
This project builds reusable infrastructure for one of the most strategically important real-world sectors: digital health and medical imaging.
The system includes:
These components reduce future development costs for other builders by orders of magnitude.
The following reusable outputs ensure compounding value:
1. Cardano Medical Data & Consent SDK
Open-source modules allow any Cardano developer to implement:
This dramatically expands real-world utility applications.
2. Real-World Adoption in a Regulated Sector
Healthcare is one of the hardest industries to break into due to compliance, liability, and data-handling standards.
This project delivers:
Cardano gains credibility and evidence of feasibility in a high-value industry.
Value for money is strengthened by the team’s background:
This ensures the project is delivered efficiently, reliably, and with reduced risk.
For every ADA spent, the ecosystem gains:
This is a rare opportunity where cost is low, impact is high, and outputs are durable.
I confirm that evidence of prior research, whitepaper, design, or proof-of-concept is provided.
Yes
I confirm that the proposal includes ecosystem research and uses the findings to either (a) justify its uniqueness over existing solutions or (b) demonstrate the value of its novel approach.
Yes
I confirm that the proposal demonstrates technical capability via verifiable in-house talent or a confirmed development partner (GitHub, LinkedIn, portfolio, etc.)
Yes
I confirm that the proposer and all team members are in good standing with prior Catalyst projects.
Yes
I confirm that the proposal clearly defines the problem and the value of the on-chain utility.
Yes
I confirm that the primary goal of the proposal is a working prototype deployed on at least a Cardano testnet.
Yes
I confirm that the proposal outlines a credible and clear technical plan and architecture.
Yes
I confirm that the budget and timeline (≤ 12 months) are realistic for the proposed work.
Yes
I confirm that the proposal includes a community engagement and feedback plan to amplify prototype adoption with the Cardano ecosystem.
Yes
I confirm that the budget is for future development only; excludes retroactive funding, incentives, giveaways, re-granting, or sub-treasuries.
Yes
I Agree
Yes
🔗 https://www.linkedin.com/in/ibila-prudence26/
Prudence leads product, partnerships, and regulatory strategy. She is a biomedical engineer and healthtech founder with experience deploying AI, blockchain, and IoT infrastructure in African healthcare systems. As co-founder of UzimaNexus, she drives the platform vision, manages stakeholder alignment between clinics, labs, and regulators, and oversees compliance, pilot design, and user onboarding. Prudence ensures real-world clinical adoption, coordination with institutional partners, and patient safety considerations.
🔗 https://www.linkedin.com/in/alvin-m-b3b968180
Alvin is responsible for the technical design and delivery of the solution. He is a software engineer and specialist in blockchain, ML/DL and distributed systems. He has previously:
Le-Bumba Technologies is a Nairobi-based engineering consultancy specializing in backend systems, data pipelines, integrations, and digital infrastructure. They are our technical development partners. And have provided a dedicated team of:
Their team will assist with the SDK release, hospital integrations, and technical validation for pilot deployments. They have prior experience supporting enterprise software deployments in East Africa’s healthcare and financial sectors.
UzimaNexus remains fully independent as the sole owner of all intellectual property, code, and methodologies developed throughout this project. While Le-Bumba Technologies provides essential development services, all deliverables, smart contracts, infrastructure code, and system designs are the exclusive intellectual property of UzimaNexus. This ensures complete strategic independence and full control over the platform's evolution, future deployment decisions, and commercial partnerships.
Our team is part of the Techstars + Cardano Founder Catalyst Program, where we receive mentorship, technical guidance, and governance best practices from Cardano ecosystem leaders.
This provides: