Create a document proof
Generate a unique cryptographic
fingerprint for your document.
Document Integrity Platform
Prove every document is authentic, unchanged, and audit-ready.
Checksum enables organizations to issue verifiable documents that anyone can independently verify in seconds.
⬟ Document integrityϟ Independent verification</> API-first
Document Verification
Verified- Document
- Issued by
- ABC Corporation
- Issue date
- March 14, 2026
Document integrity verified
Matches the document issued by ABC Corporation
on March 14, 2026.
Fingerprint (SHA-256)a81f...92c7...f1d8...8a21
Verified in 0.4 secondsShare the document
Distribute the document with
its verification reference.
Verify instantly
Anyone can confirm its authenticity
and detect changes.
Key use cases
Stop wasting hours verifying employment documents.
Reduce manual verification and give recipients the confidence they need.
Employment & Salary
Verification
Let employees share verifiable employment letters and payslips.
Financial Document
Verification
Instantly verify income statements and supporting documents.
Education & Credential
Verification
Issue and verify academic credentials with confidence.
Ready to secure your document operations?
Start with a guided onboarding call and deploy checksum verification across legal, finance, HR, and compliance workflows.
Contact Sales