Tamper Detection
Automatically flag even single-byte changes across all uploaded files.
Document Integrity Platform
Prove every document is authentic, unchanged, and audit-ready.
Checksum creates cryptographic fingerprints for every file, tracks version history, and gives your team instant verification from upload to archive.
Verification snapshot
File
contract-v4-signed.pdf
Signed By
Checksum Inc.
Signed On
Mar 14, 2026
Integrity statusVerified
Immutable Audit Trail
Track who uploaded, verified, and accessed each document with timestamped records.
API-First Workflows
Integrate checksum generation and verification directly into your document pipeline.
99.99%
verification uptime
100 +
documents hashed
<1s
average check speed
Ready to secure your document operations?
Start with a guided onboarding call and deploy checksum verification across legal, finance, HR, and compliance workflows.
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