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Digital verification
Learn about blockchain-powered OpenAttestation, an open-source, backend framework that simplifies document endorsements and verifications.
Last updated 4 June 2025
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Simplifying the verification of digital official documents with blockchain-powered OpenAttestation
OpenAttestation is a government framework for verifying the authenticity of digital documents using blockchain technology.
Verifies the identity of the document issuer.
Protects data privacy through selective information disclosure.
Open-source framework available for public use.
Today, official government documents are created, transmitted and stored digitally. In an era when scams and forgery are rampant, there is a need to ensure the authenticity and integrity of these digital documents.
Enter OpenAttestation, an open-source framework that simplifies the endorsement and verification of documents. Created by GovTech's Government Digital Services, it harnesses blockchain protocols to store cryptographic proof of individual documents.
Today, the OpenAttestation framework has helped create the OpenCerts project, which supports digitisation of educational certificates into verifiable documents, as well as helped create HealthCerts for COVID-19 certifications that are in line with international standards.
Why use OpenAttestation?
Ensure integrity of the document
The framework offers verifiable, tamper-evident credentials that prove the document's provenance.
Verify issuance identity
OpenAttestation verifies the identity of document issuers via DNS and updates the status of revoked documents, even for copies already circulated.
Safeguard data privacy
Users are given the autonomy to selectively disclose information.
How to use OpenAttestation?
A backend framework, OpenAttestation is not a service that can be used like other government services. However, citizens can use governmental services that are built on this framework to verify their official documents, such as OpenCerts and HealthCerts.
