Certify the time of signature

sello de tiempo

Time stamp

The time stamp is a mechanism that allows to prove that a series of data has existed and its integrity. That is, it allows to prove that these data were created at a certain time, and that they have not been modified.

To associate the data with a specific point in time on the timeline, it is necessary to use a Qualified Time Stamp Authority (QTSA) as a trusted third party.

Generates one of the most legally solid pieces of evidence: time.

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grafico verificación

Allows automatic verification that the data has not been modified.

Allows long term archiving.

gráfico longplay

Re-sealing capability, which allows a time stamp to be updated, and time stamp verification, which is used to verify its validity.

Ensure the integrity of your documents

Time stamp with Viafirma

Our manager allows you to group your certificates in a single tool to better control their use.

We are a Qualified Provider of eIDAS Time Stamping creation.

Trusted Service Providers Certificate

Registro : PSC-2019/0008

Trusted List of Qualified
Electronic Trust Service Providers

Time-stamping is based on those described by the RFC-3161 Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP) standard, written by the Internet Engineering Task Force (IETF). .

Time stamp included in our products.

Viafirma offers free of charge the addition of the time stamp in its cloud services for all the electronic signature processes. This allows to evidence with certainty the exact moment of the signature, verifying the validity of the certificate at that instant.

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An electronic signature API
powerful, secure and flexible

Implement the electronic signature API in the tools you use in your company.
Thanks to our powerful API, based on REST services, you will be able to integrate and start signing documents quickly and easily.

Do you need to integrate into your CRM o ERP?


Legal guarantee always up to date

100% eIDAS. Trust services
Strict compliance with the DAS regulation. Choose simple, advanced or qualified signature according to your needs, within the most demanding legal framework in the world in terms of digital identity.

100% RGPD. Data protection
Informed consents that comply with the new RGPD in all aspects. All our solutions are extremely responsible with personal data.

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Our clients

Generates one of the mostlegally evidences of proof: time


+ than 20 years dedicated to electronic signatures

We are Viafirma, an innovative software development company with a suite of products focused on the realization of signatures in a digital environment. We work in the area of the so-called Trusted Digital Services and we are specialised in the development of solutions related to electronic signature.






    Frequently Asked Questions

    The electronic signature is a set of data associated with an electronic document and used to identify the signatory. It must guarantee the authenticity and identity of the signatory and be linked to the signed data in its entirety.

    Our signature tools are fully compliant with the requirements of the eIDAS regulation, considered the most demanding digital identity trust services standard in the world.

    Documents can be stored in the tool itself or stored in your document management system.

    Viafirma allows to customize the final stages of the life cycle of a signed document, through the implementation of different mechanisms to transfer and/or copy the generated and signed documents.

    We offer different options:

    • Storage in Viafirma’s servers.
    • External transfer: a system for transferring signed documents to an external system or repository can be activated.
    • Automatic deletion: can be configured at various points in the process, for example in the implementation of the external transfer, i.e. if the transfer was successful, the document is automatically deleted.

    We offer an interface 100% adapted to mobile devices, allowing the execution of tasks entirely on the mobile. In addition, we have free applications in Apple Store and Play Store.

    The most widespread method is using the digital certificate. However, there are other options that are much simpler and just as valid. You can learn more about how to sign a document digitally on our blog.

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