About Certichain
A registry anyone can read and no one can quietly rewrite.
Certichain gives academic credentials a public record that anyone can check in seconds, without an account and without asking the registrar.
Why it exists
A paper certificate is easy to copy and slow to check. Employers email registrars, registrars dig through files, and a forged PDF can pass in the meantime.
Certichain lets an institution put a credential on record once. From then on, anyone can check it in seconds without asking anyone.
How a credential is made
The registrar describes the credential and signs it with the institution's key. The registry records that signature, a SHA-256 fingerprint of the document and salted commitments to the holder's details.
The document is encrypted in the browser before it is stored, so the copy on the storage network can only be opened with a key the holder controls.
What lives on the chain
Fingerprints, commitments, the issuer's address and the credential's status. Never a name, a student number or the document itself.
Status that can change
An issuer can suspend, reinstate or revoke a credential, or replace it with a corrected one. Each change carries a reason and stays on record, so a check always shows the current standing.
Sharing on the holder's terms
Graduates share a credential by link, by file or from their phone. They can open a document for one reader, take that access back, and show only the fields a verifier needs.
Open standards
Credentials export as W3C Verifiable Credentials 2.0 and Open Badges 3.0, with status published as Bitstring Status Lists, so other wallets and verifiers can read them. A signed verification API serves systems that check credentials in bulk.
Where it stands
Certichain runs on the Ethereum Sepolia test network. Please do not upload real personal documents yet. Independent reviews come before any production launch.
Have a credential to check? Verify it now.