Proof,notpaperwork.
Universities sign every certificate at the source and anchor its fingerprint on a public blockchain. Anyone can check one in a second — no account, no phone calls, no waiting.
University of Nigeria, Nsukka
Office of the Registrar
This certifies that
Adaeze Nwosu
has been awarded the degree of B.Sc. Computer Science
Second Class Upper · 29 May 2026
Credential
UNN-2026-TREKDW
Fingerprint
0x073b…7f28
What we checked
- IntegrityMatches its fingerprint on chain
- AuthenticitySigned by the university’s key
- ProvenanceThat key is registered on chain
- Not revokedStill stands today
How it works
Signed at the source.
Checkable forever.
Signed by the university
Each credential is signed with the institution’s own Ed25519 key. The signature travels inside the file.
Anchored on Base
Its SHA-256 fingerprint is written to a public registry contract. Not the certificate, never personal data: just 32 bytes.
Verified by anyone
A share link, QR code or the file itself answers four questions in under a second. No account, no Attest required.
Built for the University of Nigeria, Nsukka
From convocation
to every job application.
B.Sc. Pharmacy · First Class
University of Nigeria, Nsukka · 2026
The 49th convocation procession
Every year, thousands walk out of convocation with a paper certificate and spend months proving it is real. Attest gives each of them a credential that proves itself, the day it is awarded.
University of Nigeria, Nsukka
The first institution on Attest
Try to fake one
Change one letter. Watch it fail.
Every credential has a fingerprint: a SHA-256 hash of its exact contents, written to the blockchain when it is issued. Edit anything below and your browser recomputes it, live.
The certificate
Go on: make it a First.
Invalid
The no longer match what was anchored.
0x0000000000000000000000000000000000000000000000000000000000000000
0x0000000000000000000000000000000000000000000000000000000000000000
Computed in your browser with the Web Crypto API. Change one character and about half of the 64 digits change with it, so no edit can keep the fingerprint the same.
Who it’s for
One credential. Three people who need to trust it.
Issue a whole graduating class before lunch.
- Upload the registry’s spreadsheet; columns are matched for you, every row checked first
- One transaction anchors up to 250 credentials
- Revoke and reissue with a reason verifiers can read
- Every action on an audit log you can export
to verify a credential, end to end
independent checks, each shown on its own
credentials anchored in one transaction
of personal data ever written on chain
Make every certificate provable.
Universities issue in minutes. Graduates carry proof that speaks for itself. Everyone else gets an answer in a second.