Portfolio demonstration

Blockchain-enabled green hydrogen supply chain traceability system

A frontend-only interface showing how producers, certifiers, auditors, and public users could interact with a green hydrogen certification and traceability platform.

Verify Certificate Explore Batches
Workflow preview Certified

GH-BATCH-2026-001

Rhine Electrolysis GmbH

Certificate GH-CERT-2026-001
Carbon intensity 1.82 kg CO₂e/kg H₂
Document CID bafybeihydrogen001demo
Blockchain tx 0x8f3a...91c2
Portfolio-only note: This demo uses sample interface records only to present the user experience. It is separate from the academic thesis prototype and does not claim to be the real deployed thesis implementation.

System overview

Dashboard

A compact overview of the core traceability workflow: registration, evidence linking, validation, certificate issuance, and public verification.

3

Registered batches

2

Certified batches

4

Role views

UI

Frontend demo only

Role-based concept

Participant views

Producer

Registers production batches and uploads supporting documents.

  • Create batch
  • Attach documents
  • View own certificates

Certifier

Reviews evidence, validates rules, and issues or revokes certificates.

  • Review batch
  • Validate data
  • Issue certificate

Auditor

Checks traceability history, evidence references, and certification status.

  • View events
  • Inspect references
  • Check certificate status

Public Verifier

Searches certificate IDs and verifies public certificate details.

  • Search certificate
  • View public status
  • Check transaction reference

Batch registry

Hydrogen production records

Batch ID Producer Energy source Carbon intensity Status

Public verification

Certificate search

Traceability timeline

From production to certificate verification

1

Production batch registered

Producer · 2026-06-01 09:15

Hydrogen production batch created with energy source, plant, and emission metadata.

2

Evidence document attached

Producer · 2026-06-01 09:42

Renewable electricity and production evidence linked through an IPFS-style document reference.

3

Certification rules evaluated

Certifier · 2026-06-02 11:20

Carbon intensity and document completeness checked against certification criteria.

4

Certificate issued

Smart contract workflow · 2026-06-02 11:26

Certificate status and traceability event recorded for public verification.