In your professional profile
Every certificate has its own URL with a verification QR, ready for your CV or portfolio.
Your hard work deserves a verifiable credential.
Bring your achievements together in a portfolio, share them with anyone and let their authenticity be checked with a link. Your institution issues them. You take them further.
- Verifiable by anyone, in seconds
- With a professional preview for LinkedIn
- Export your credential for independent custody
Free for students · no wallet or blockchain knowledge needed
Interactive demonstration
Try how it works
Enter the link or scan the QR code of any credential issued on Tessera.
https://tessera.blokis.dev/verify/1
Simulated example. No blockchain queries or certificates issued.
Public verificationAnyone can check a credential, in seconds.
On-chain credentialsA blockchain record lets anyone check where each credential comes from.
Keep it simpleReceive and share your achievements without installing a wallet or learning blockchain.
Tessera.Real achievements. Opportunities without limits.Powered bypolygon
The problem
The degree you worked so hard for fits in a file anyone can forge.
A PDF proves nothing on its own. Tessera changes the format, not the effort behind it.
The PDF certificate
as it is today
- A PDF can be edited in two minutes with any editor
- Verifying means phoning the institution
- If you lose the file, you lost the achievement
- Nothing proves the degree is really yours
The SBT credential
with Tessera
- Signed on-chain: altering it is impossible
- Anyone checks it themselves, in seconds
- It lives on the blockchain, not on your hard drive
- Soulbound: tied to you, non-transferable
How it works
From your diploma to the blockchain, without having to understand the blockchain.
- Step 01
You finish your course
Your institution issues the credential from Tessera. You do not have to do anything at all.
- Step 02
You receive your credential
It arrives by email with a wallet already created for you. No seed phrases, no fees, no cryptocurrency.
- Step 03
You share it wherever you want
A link with a professional preview for LinkedIn, your CV or your portfolio. It looks good everywhere.
- Step 04
Anyone verifies it
The employer opens the link and checks its authenticity instantly, straight against the blockchain.
Your professional portfolio
Much more than a PDF
Your certificates become verifiable and shareable records. Made so the world trusts your achievements without asking for explanations.
Verifiable credentials
Every certificate is signed on-chain. Anyone can check its authenticity without depending on Tessera.
Ready for LinkedIn
Share your achievement with a professional preview. It generates more visibility and real opportunities.
Verifiable integrity
The record and cryptographic fingerprint help detect document changes. The soulbound token cannot be transferred between holders.
No wallet needed
Tessera holds your credentials for you. Whenever you want, you can link your own wallet.
Keep an independent copy
Export your files and verification data. File availability requires continued hosting, pinning or independent custody.
A public page per achievement
Every certificate has its own URL with a verification QR, ready for your CV or portfolio.
Are you an institution? See Tessera for institutions →
Under the hood
We are not asking you to trust us.
Everything rests on public, auditable standards. If Tessera disappeared tomorrow, your credentials would still be verifiable.
ERC-5192
Soulbound. The credential stays bound to its owner: it cannot be sold, transferred or lent.
ERC-721 + ERC-4906
Open standards that any wallet, explorer or indexer in the ecosystem understands.
Polygon
A public, low-cost network. Verifying does not depend on our servers or our permission.
Hash verification
The file identifier is derived from its content. A single altered byte changes the CID.
IPFS + Pinata
Published files require continued hosting and pinning to remain accessible.
EIP-712 signature
Every issuance is signed with a per-institution nonce. Nobody can reuse or duplicate a signature.
Your achievements. Ready for what comes next.
VerifyWhen someone checks your achievement
The employer opens the link and checks its authenticity instantly, straight against the blockchain.
From your institution
It arrives by email with a wallet already created for you. No seed phrases, no fees, no cryptocurrency.
FAQ
Objections answered before your first issuance.
This part matters too: blockchain, compliance and payments usually sound complex. Here we make it clear, direct and verifiable for a serious buyer.
Built for institutional sales
Compliance, custody, gas and operational continuity
No. Tessera creates custodial wallets by default. If a student wants full autonomy, they can link their own wallet (MetaMask, Coinbase, etc.).
Your portfolio is waiting
Start with your first verifiable achievement. It is free forever.
Create your account, connect the certificates you already have and start sharing them with a professional preview on LinkedIn.
No card · no wallet · no small print