Verifiable Credentials Product by skios

Skios VCP

Educational Certificates That Prove Themselves

A verifiable-credentials platform that replaces forgeable PDF certificates with tamper-proof, ledger-anchored digital credentials. Built for ministries, universities and awarding bodies where a certificate isn't just a document — it's a lifelong claim that must stay provable, everywhere.

1,260/s
Bulk Issuance
30,000 credentials in 23.7s
54ms
Verification p95
against a <500ms target
30k+
Annual Volume
national-scale capacity
0
PII On-Ledger
GDPR-safe by design
See It in Action

From Issuance to Lifelong Verification

A complete national credentialing operation — issuing registry, public verifier and holder portal — shown here running on demo data for an education deployment.

Skios VCP public verification portal — a University Degree credential verified as valid and authentic with full trust-registry details
01

Public Verification Portal

Anyone can verify a certificate in seconds — scan the QR code or enter the verification code. The portal checks the cryptographic signature, integrity hash and live status, and shows exactly what was attested, by whom, and when.

Skios VCP staff dashboard — issuance totals, registry integrity chain check, SLA usage and verification activity
02

Registry Operations Dashboard

Issuance volumes, verification activity and SLA usage at a glance — with a live registry-integrity check proving the entire trust chain is intact, every time you look at it.

Skios VCP credential detail — Secondary Education Certificate with trust-registry history, QR code and lifecycle actions
03

Credential Lifecycle Management

Every credential carries its full trust-registry history, printable QR verification, and one-click lifecycle actions — suspend, revoke or reissue with mandatory audited reasons.

Skios VCP reports — SLA usage metering, issuance by month and per-template breakdowns with CSV export
04

Reporting & SLA Metering

Transparent SLA usage against the annual allowance, issuance trends by month, per-institution and per-template breakdowns — exportable as CSV or JSON and reconciled against the ledger.

Trust Architecture

Four Layers That Make a Certificate Unforgeable

Skios VCP separates what a credential says from how it is trusted. Personal data stays protected off-ledger, while a tamper-evident trust registry anchors every credential's authenticity and status — verifiable by anyone, forever.

01
Trust Layer

Ledger-Anchored Trust Registry

Every issuance, suspension, revocation and reissue is committed to an append-only, hash-chained trust registry — designed to sync onto a permissioned Hyperledger Fabric ledger. Any retroactive edit, deletion or relink is detected. Verifiers confirm authenticity independently, without contacting the issuer.

Append-only, hash-chained anchor registry for every lifecycle event
Chain verification proves the registry has never been tampered with
Blockchain-sync-ready: designed for permissioned Hyperledger Fabric
No personal data on the trust layer — salted hashes, IDs and status only
02
Interoperability

Standards-Native Credentials

Certificates are issued as W3C Verifiable Credentials, cryptographically signed with Ed25519 over canonicalised JSON. Aligned to eIDAS 2.0, the EUDI Wallet and the European Digital Credentials for Learning framework — so a credential issued today stays verifiable across the EU for the holder's lifetime.

W3C Verifiable Credentials with Ed25519 signatures (eddsa-jcs-2022)
eIDAS 2.0 / EUDI Wallet and EDC-for-Learning alignment
Dual output: human-readable certificate PDF + machine-readable VC
Published issuer trust list for independent key verification
03
Verification

Instant Public Verification

Employers, universities and authorities verify any certificate in under a second — by QR code, verification code, URL or REST API — free and without registering. Every check validates the integrity hash, the issuer's signature and the live lifecycle status against the trust registry.

QR code, short verification code, URL and API verification paths
Checks signature, integrity hash, status and validity window
Sub-second responses: p95 of 54 ms under concurrent load
Every verification event logged for analytics and audit
04
Governance

Full Lifecycle Control

Credentials are living records, not static files. Suspend, reinstate, revoke with mandatory reasons, or revoke-and-reissue corrected certificates with two-way supersession links — every action anchored to the registry and visible to verifiers in real time.

Suspend / reinstate / revoke with mandatory audited reasons
Revoke-and-reissue with linked supersession history
Template-driven validity windows and expiry
Hash-chained audit log of every administrative action
Platform Capabilities

Everything a National Credentialing Operation Needs

Beyond the trust layer, Skios VCP is a complete operational platform — bulk issuance, holder self-service, institutional governance, integrations, reporting and defence-grade security.

Bulk & API Issuance

Template-based single issuance, CSV batches with row-level error isolation — proven at 30,000 credentials per batch — and REST API issuance for student-information systems.

Holder Self-Service Portal

Students and teachers view, print and download their credentials, and share them via expiring, view-limited links with selective disclosure — web, mobile and EUDI Wallet ready.

Multi-Institution Issuing

Ministries, universities and colleges each operate with their own signing keys, templates and staff. Organisation suspension instantly blocks issuance network-wide.

RBAC, MFA & Key Management

Six-role capability matrix, TOTP two-factor authentication, account lockout, and issuer key rotation — retired keys still verify their credentials, compromised keys are hard-refused.

REST API & Webhooks

Scoped API keys for verify, issue, revoke and reporting, plus HMAC-signed webhooks with retry — pre-wired for student-information and HR system integration.

GDPR by Design

No PII on the trust layer. Subject export (Art. 15/20) and right-to-erasure (Art. 17) built in — personal data is erased while proof-of-issuance hashes remain valid.

Reporting & SLA Analytics

Dashboards for issuance and verification volumes, per-institution and per-template breakdowns, SLA usage metering, and CSV/JSON compliance exports.

Tamper-Evident Audit

A second hash-chained log records every administrative and security action, browsable in the portal and reconcilable against the trust registry.

Pseudonymous Identity Binding

Credentials bind to holders through salted HMACs of the national eID number — strong subject binding with no raw identifiers stored in the credential.

Hardened Security Posture

Strict CSP, CSRF protection, rate limiting, encrypted keys at rest (HSM-ready), hashed session and API tokens, and defence-grade engineering standards throughout.

Multilingual & Accessible

English and Maltese across all public and certificate surfaces, with semantic, keyboard-first, WCAG-conscious interfaces.

Sovereign Deployment

Cloud-native and containerised for government cloud hosting with high availability and disaster recovery — built for national-scale public infrastructure.

How It Works

From Results Day to Lifelong Proof

01

Template

Define credential templates — degrees, certificates, transcripts, warrants — with schemas, validity rules and signing keys per institution.

02

Issue

Issue individually, in bulk from CSV, or via API from your student-information system. Every credential is signed and anchored to the trust registry.

03

Hold & Share

Holders access their credentials through the self-service portal — print with QR, download the signed credential, or share selectively via expiring links.

04

Verify

Employers and institutions verify instantly and free — signature, integrity and live status checked against the registry, with every check audited.

Built For

Institutions Whose Certificates Must Be Beyond Doubt

Skios VCP is designed for issuers whose documents carry lifelong value — and lifelong exposure to fraud.

Ministries of Education

National-scale issuance of state examination certificates, teacher warrants and qualifications — 30,000+ credentials per year with full audit.

Universities & Higher Education

Degrees, diplomas and transcripts as verifiable credentials — instantly checkable by employers and admissions offices worldwide.

Vocational & Further Education

Course completions, skill cards and trade certifications with template-driven expiry and renewal workflows.

Professional & Awarding Bodies

Licences, warrants and professional registrations with real-time suspension and revocation visible to every verifier.

Training Providers

High-volume certificates for short courses and CPD programmes, issued in bulk and shared by holders in one click.

Government Registries

Any registry issuing attestations citizens must prove elsewhere — built on the same pattern as Malta's national Fabric platforms.

Ready to Make Your Certificates Unforgeable?

See a live issuance-to-verification walkthrough with your own certificate templates, and how Skios VCP fits your identity, hosting and compliance landscape. Book a personalised demo with our team.