Instant Verification

QR Code certificate verification - instant blockchain security

Scan any TRUE credential with your phone camera. Blockchain verification confirms authenticity in seconds. No apps to download. No accounts to create. No waiting for issuer response.

How QR verification works

Three steps. Five seconds. Mathematical certainty.

1

Scan

Point any smartphone camera at the QR code. No special app required native camera on iOS and Android recognises QR codes automatically.

2

Verify

Blockchain lookup retrieves the original hash and compares it against the credential. If hashes match, the credential is authentic and unaltered.

3

View

Green confirmation displays with full credential details: recipient name, achievement, date issued, and blockchain transaction ID for audit proof.

Why QR verification beats traditional methods

MethodTimeAvailabilitySecurity
Phone/Email to Issuer3-10 business daysOffice hours onlyManual, error-prone
Database LookupMinutesIf system is upSingle point of failure
PDF ReviewInstantAlwaysNo verification possible
QR Code Verification2-5 seconds24/7/365Blockchain proof

QR Code security features

TRUE QR codes aren't ordinary links. They're anchored to blockchain with multiple security layers.

Cryptographic hashing

Every credential's contents are converted into a unique SHA-256 fingerprint. Even a single character change produces a completely different hash. One-way and fixed-length.

Blockchain anchoring

The hash is permanently written to public blockchains (Ethereum, Polygon, AVAX, Fantom). Immutable, decentralised, transparent, and permanent.

Tamper detection

If anyone modifies the credential after issuance, the hash changes. The new hash won't match the blockchain record verification fails instantly.

QR Code protection

QR data includes digital signatures from the issuer. Each QR links to exactly one credential and cannot be reused. Expiration status is reflected in real-time.

Implementation examples

Academic diplomas

Universities issue blockchain-secured diplomas. Employers scan and instantly confirm the degree, graduate name, and graduation date. Karolinska Institutet uses QR verification.

Professional certificates

Training providers issue completion certificates that employers verify in seconds. SSF (80+ years authority), Safe Cert Group, Dale Carnegie Sweden use TRUE.

Professional licenses

Licensing bodies issue verifiable credentials. Clients scan to confirm qualifications medical credentials, security clearances, safety certifications.

Corporate training

L&D departments issue QR-verified credentials. Employees share on LinkedIn; anyone can verify. Skanska uses TRUE for L&D certificates.

QR Verification features

Custom QR design

Your colours and logo embedded. Consistent brand identity across all credentials.

Scan analytics

Track total scans, geographic distribution, device breakdown, and time patterns.

Multi-language

Verification portal displays in the verifier's preferred language. Truly international.

Offline capability

After initial verification, results can be cached for areas with limited connectivity.

Revocation handling

If a credential is revoked, QR verification reflects this instantly. No misuse possible.

White-label portal

Verification happens on your domain with your branding not TRUE's.

500K+documents issued
free verifications
2-5sverification time
4blockchain networks
200+organisations
15+countries

FAQ

Do I need an app to verify QR code certificates?
No. The native camera app on iOS and Android recognises QR codes automatically. Point, scan, and verify instantly. No download required.
How long does QR verification take?
2-5 seconds. The blockchain lookup is instant, and results display immediately after scanning.
Can QR codes be faked?
QR codes can be copied, but verification will fail. Each QR contains a cryptographic hash that must match the blockchain record. Fake or modified credentials produce different hashes and fail instantly.
What if a credential is revoked?
QR verification reflects real-time status. If a credential is revoked, future scans show it as revoked protecting against misuse.

Ready to implement QR verification?

Give your credentials the verification method employers expect. Instant, secure, tamper-proof.