HIGHER EDUCATION
The permanent verification layer for digital credentials
Chainletter makes it easy for anyone to verify a credential — instantly, independently, and permanently. Use it as a standalone credentialing platform or add it as a verification layer to the systems you already have.
WHY CHAINLETTER
Credentials that stay verifiable for decades
Chainletter records a cryptographic fingerprint of every credential at issuance — creating a permanent record that makes verification easy, tamper-proof, and independent of any single system.
Permanent, independent verification
Digital credentials are typically verified through the platform that issued them. If that system changes, the vendor disappears, or a verification link breaks, the credential can become difficult — or impossible — to validate.
Chainletter creates a permanent verification reference that exists independently of any single platform. Even if systems migrate or vendors change, the credential can still be verified against its original record — ensuring long-term trust for employers, institutions, and learners.
Immutable credential audit trail
Every credential has a lifecycle: it is created, sometimes updated, and occasionally revoked. Today, these events are scattered across disconnected systems, making it difficult to produce a clear record when it’s needed most.
Chainletter captures lifecycle events in a tamper-resistant audit trail — when a credential was issued, when changes occurred, and who authorized them. This creates a single, verifiable history ready for accreditation reviews, compliance audits, or disputes about credential validity.
Credential integrity protection
A digital credential is only trustworthy if its contents have not been altered after issuance. Without an external reference point, tampering can be difficult to detect — especially as AI tools make sophisticated forgeries easier to produce.
Chainletter stores a cryptographic hash of each credential, allowing anyone to confirm that the credential presented today is identical to the one originally issued. If even a small piece of metadata is changed, the verification check immediately detects the discrepancy.
FLEXIBLE DEPLOYMENT
Use it on its own or alongside what you already have
Chainletter works as a standalone credentialing platform or as a verification layer that integrates with your existing systems. Either way, every credential gets the same permanent protection.
Chainletter as your credential platform
Issue, stamp, and distribute verified credentials directly through Chainletter — no additional systems required.
✓ Upload credentials through the dashboard or API
✓ Distribute self-verifying files to earners
✓ Permanent verification record created automatically
✓ Full audit trail from issuance through revocation
✓ No additional platforms or infrastructure needed
Chainletter as a verification layer
Keep your existing credential platform and add Chainletter as the permanent verification layer beneath it.
✓ Works with any credential platform or LMS
✓ Add one step to your existing issuance workflow
✓ Credentials gain platform-independent verification
✓ No changes to how you currently issue or distribute
✓ Verification persists even if you switch vendors
HOW IT WORKS
From credential to permanent proof in seconds
One step creates a permanent verification record for any credential your institution issues.
WHAT THIS SOLVES
Real problems for credential offices
Registrars deal with rising verification costs, manual processes that don’t scale, and growing pressure to demonstrate credential integrity. Chainletter addresses all three.
When credentials are self-verifying, employers and other institutions check them directly — reducing the volume of paid verification requests your office processes each year.
Fewer phone calls, fewer sealed envelopes, fewer email threads between HR departments and your records office. Verification happens without your staff in the middle.
Chainletter creates a cryptographic fingerprint of each credential without storing or exposing its contents. Credential data stays with you — only the verification proof is recorded externally.
A single, verifiable audit trail for every credential you issue — ready for accreditation reviews, compliance checks, and records retention requirements.
Credential fraud is a $21 billion global industry. Every credential verified through Chainletter has a permanent, tamper-proof record that forged credentials cannot replicate.
Verification persists independently of Chainletter or any other vendor. If any system changes, credentials remain permanently verifiable against their original record.
STANDARDS COMPATIBLE
Built on open standards
Chainletter supports the open standards that define how digital credentials are issued, shared, and verified across the global education ecosystem.
Verifiable Credentials 2.0
The global standard for cryptographically signed, machine-verifiable digital credentials — adopted by 80% of credential initiatives worldwide.
Open Badges 3.0
The education industry standard for digital achievement credentials — used across K-12, higher education, and professional development.
Comprehensive Learner Record 2.0
Bundle multiple credentials into verified transcripts and longitudinal learner records with full lifecycle verification.
PRACTICAL DETAILS
Designed for how institutions actually operate
No specialized expertise. No complex migration. No workflow disruption.
Upload files through the dashboard or connect via API. Start creating permanent verification records the same day — no technical background required.
Upload files manually for small batches, or connect via API to create verification records automatically as part of your existing issuance workflow.
Process thousands of credentials during graduation cycles. Real-time event notifications confirm each record without polling or manual checks.
Transcripts, diplomas, badges, certificates, micro-credentials — PDF, JSON, Open Badge, W3C VC. If it’s a file, Chainletter can verify it.
Chainletter never stores, reads, or transmits credential contents. Only a cryptographic fingerprint leaves your systems — supporting FERPA, GDPR, and internal data policy compliance.
Offer premium verified credentials to alumni and employers. Permanently verifiable transcripts and certificates become a value-added service your institution can provide.
FOR DEVELOPERS
One API call to create a permanent verification record
Standard REST endpoints, real-time events, and no special infrastructure required. Embed permanent credential verification into any system.
const res = await fetch(“https://service-link.clstamp.com/webhook/YOUR_API_KEY”, {
method: “POST”,
headers: {
“secret-key”: “YOUR_SECRET_KEY”,
“group-id”: “my-credentials”,
“stamp-immediately”: “true”
},
body: formData // FormData with ‘file’ field
});
// Response
{
“success”: true,
“hash”: “Qm…”,
“files_stamped”: 1,
“network”: “public”
}
Credential webhook API
Upload, manage, and verify credential files. Automatic group organization, real-time SSE events, and batch processing for graduation cycles.
Platform API
Hash-level operations with JWT auth and service accounts. Create verification records directly from your SIS or LMS without Chainletter ever touching the file contents.
Real-time events
Server-sent events for instant confirmation when credentials are stamped or verified. Trigger downstream workflows in your student portal automatically.
Backed by Qubic Labs — Proud recipient of a 2025 development grant from Qubic Labs.
GET STARTED
Make every credential permanently verifiable
Add a permanent verification layer to your institution’s credentials in minutes. No specialized expertise required.
