Build a citizen-controlled consent system where a citizen approves once for multiple government departments to share their data for a specific service. DID and VC Ledger, Civil Registry, and Compliance Attestations anchor the core, so departments verify shared data without repeated submissions and the citizen decides exactly what is shared.
Turn repeated document submission into a single, scoped, citizen-granted consent that departments honour on-chain.
01.
Let the citizen approve once. The contract records a specific consent naming the service, the departments, and the data fields, so sharing is bounded to exactly what the citizen allowed.
02.
Share proofs, not copies. The DID and VC Ledger lets a source department present a verifiable claim, so a receiving department confirms a fact without holding a duplicate document.
03.
Tie data to one service. Each consent is bound to a named purpose, so data shared for a pension application cannot be reused for an unrelated departmental process.
04.
Keep control with the citizen. Consent can be revoked on-chain at any time, immediately cutting further sharing without needing to contact each department.
05.
Prove lawful basis. Compliance Attestations record that each cross-department read happened under a valid consent, giving auditors a clear lawful-basis trail.
06.
Cut duplicate paperwork. A citizen submits a document once, and consenting departments verify the shared claim rather than demanding the same paper again.
Follow a single service request from a citizen's scoped consent through cross-department verification to attested access.
09:20:11
[SYS] Recording citizen consent grant...
09:20:11
[CMD] grant { service: "RATION_CARD", depts: 3, fields: ["INCOME","ADDRESS"] }
09:20:12
[AUTH] Verifying citizen DID signature...
09:20:12
[OK] Consent CNS_2291 anchored at block 5810233.
Cerulea decomposes cross-department sharing into modular contracts. Each layer grants, presents, attests, and revokes access without pooling citizen documents in one controllable store.
Citizen-controlled data sharing is a horizontal capability. Here is how different public actors put the consent ledger to work.
Verify eligibility from consented claims instead of demanding the same certificates repeatedly, cutting processing time and duplicate paperwork for citizen services.
Key Asset Types
Grant one scoped, revocable consent per service and submit a document once, keeping precise control over which department sees which field.
Key Asset Types
Audit that every cross-department read had a valid consent and purpose, replacing opaque data exchange with a verifiable lawful-basis trail.
Key Asset Types
Whether you are bridging legacy departmental databases or capturing consent from a citizen app, Cerulea routes both into one consent-governed sharing ledger.
For existing departmental databases. Data requests are translated into consent-checked claim exchanges through the API gateway, so departments verify facts without moving documents.
Departmental Database
Source Systems
Cerulea API Gateway
Consent Checking & Claims
Cerulea Private Chain
Consent Sharing Ledger
For citizens granting consent on mobile. A wallet signs each grant and revocation from the citizen's device and routes it directly to the ledger.
Citizen Wallet / App
Consent Devices
Consortium Validators
Consent Consensus
Cerulea Ledger
Consent-Governed Record
Building a citizen consent network with scoped grants, verifiable claims, and revocable cross-department access from scratch requires specialised engineers and long integration cycles. Calculate your exact deployment speed using Cerulea.
Traditional Deployment
Solidity Coding & Audits
~ 12 Months
Visual Compilation
WASM Logical Artifacts
~ 4 Weeks
The legacy timeline reflects consent-management and interoperability integration benchmarks. Building scoped consent, wiring verifiable claim exchange, and shipping revocable access for an average sharing network takes a baseline of 8 months. Building the same architecture on Cerulea takes a baseline of 2 weeks, because Cerulea Studio visually translates your consent and sharing rules into pre-audited WebAssembly binaries and provisions the shared consent ledger instantly.