NOM-151 preservation certificate in digital signatures: everything you need to know

Every electronically signed document should have a preservation certificate. Why?

Preservation certificate: a time stamp on steroids

Imagine a digital time stamp that:

  • It obtains its exact date and time from an atomic clock.
  • An authorized PSC issues and digitally signs it.
  • It allows for the detection of any alterations made to the original document after it was issued.

That is a preservation certificate. Read more...

Fundamento legal nom151

NOM-151, the legal basis

Official Mexican Standard 151 is the technical regulation that defines in detail how a preservation certificate must be structured. It is secondary regulation to Article 49 of the Commercial Code.

Advanced or simple signature, all benefit

Regardless of the type of electronic signature a document has, the proof provides a presumption of integrity. Even if the document has no signatures, its integrity will be guaranteed.

Learn about the legal presumptions of the FIEL and their benefits

Advanced or simple signature, all benefit

Regardless of the type of electronic signature a document has, the proof provides a presumption of integrity. Even if the document has no signatures, its integrity will be guaranteed.

Learn about the legal presumptions of the FIEL and their benefits

Certain date, an added value

The SAT requires a certain date to support tax operations. The Asset Forfeiture Law requires this date to establish liability. For electronic documents, the NOM-151 preservation certificate provides it.

Dr. Alfredo Reyes Krafft, an expert attorney in the field, explains it to us.