Verify correspondence between TSQ and TSR files generated by RFC 3161 authorities

Upload TSQ

Timestamp request file

Upload TSR

Timestamp response file

Certified PDF (Optional)

Verify original document

What is a Timestamp?

A timestamp is cryptographic proof that certifies a document existed at a specific moment in time. TSQ and TSR files are part of the RFC 3161 protocol.

TSQ: Timestamp request containing the document hash.
TSR: Response signed by the TSA including the timestamp and digital signature.
Features
  • TSQ ↔ TSR correspondence verification
  • ASN.1 structure analysis
  • Complete timestamp information extraction
  • Compatible with FreeTSA and other RFC 3161 TSAs
  • 100% browser-based processing
  • Total privacy - no data sent to servers
Privacy guaranteed: All files are processed locally in your browser. No information is sent to external servers.