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ChronoPreuve

Prove when it existed. Prove who signed it.

Timestamping, electronic signatures, and electronic archives for durable digital evidence.

Started
2023
Development
Ongoing
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Durable evidence for digital documents

ChronoPreuve combines trusted timestamps, electronic signatures, and long-term electronic archives. It helps establish when a document existed, who approved it, and whether it has remained intact.

ChronoPreuve timestamp and file-integrity services

What it helps you do

Timestamp documents

Associate digital material with verifiable proof of existence at a specific point in time.

Apply electronic signatures

Connect documents to signer identity and protect their integrity with cryptographic evidence.

Archive for the long term

Preserve documents and their evidence beyond the lifetime of a short-term working system.

Store evidence securely

Use established cryptographic components and S3-compatible storage in a service-oriented architecture.

Designed for

Documents that must remain provable

  • Evidence-sensitive business processes
  • Signed document workflows
  • Long-term electronic records
  • Applications requiring timestamp services

Learn more

Documentation, downloads, and the latest release

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