One-Shot signature: the single-use signature

One-Shot Signature: the single-use signature

Send documents which need to be signed without installation or subscription costs

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What is the One-Shot Signature? What is the One-Shot Signature?

What is the One-Shot Signature?

The One-Shot Signature is the exclusive solution of Uanataca designed to facilitate the signing of contracts to any user who has a smartphone, computer or tablet. Forget about complex processes and discover a new way to carry out this process which is so common in our daily routine.

The service generates single-use digital certificates and electronically signs all documents included in a transaction, activated with a code sent by SMS. Electronic signature of contracts without waiting, easy to integrate, flexible, secure, intuitive and zero paper.

What is it for and what advantages does the One-Shot Signature have compared to other solutions?

  • Easy to use

    The Uanataca One-Shot Signature service is intuitive and does not require user experience.

  • Mobile solution

    The One-Shot Signature service is muti-platform. It can be used from computers, tablet or smartphone. You only need an internet connection and you don't need to install any program.

  • Easy and fast integration with our API in any flow or process

    Signature One-Shot facilitates the automation of processes through integration via API allowing the incorporation of the signature process within its internal flow of procedures.

  • 100% online contracts, paperless in a simple click

    One-Shot Signature service allows you to use the digital signature in any type of contract, completely Zero Paper.

How does it work?

Simplify your signature processes in 3 steps, through rapid integration with a web API and in one step.

  • 1
    Upload the documents to be signed

    Upload the documents to be signed and the signer's data to generate the qualified digital certificate.

  • 2
    Generate the certificate and sign the documents

    The qualified digital certificate has 60 minutes of validity. The user, through a code sent by SMS activates the signing of the documents.

  • 3
    Download the signed documents

    The electronically signed documents are downloaded and the user's digital certificate is deactivated.

Upload the documents to be signed Upload the documents to be signed
Generate the certificate and sign the documents Generate the certificate and sign the documents
Download the signed documents Download the signed documents
How to start?

How to start?

Request a personalised quotation


Know the most common applications of the One-Shot Signature

Two electronic signature levels that suit your needs

One-Shot Signature service
Binding of the signatory
Ease of use and integration
Without installing apps
Cloud security without a card
Validate over time
Long-Term Signature
Maximum legal guarantees
Reversal of the burden of proof
Equivalent to handwritten signature

Uanataca's Guarantees

  • Comfortable

    At Uanataca we make it easy for you to take advantage of our service from day one, with no investment costs or high service fees.

  • Easy to integrate
    Easy to integrate

    A powerful high-level API to integrate the issuance of digital certificates and the electronic signature in flows and processes of your company to advance in the digital transformation.

  • Insurance

    With our service, you can remain stress free because your documents will have the utmost confidentiality, security guarantees and protection thanks to the integrated and audited services under the European eIDAS regulation and the ISO27001 standard.

  • Legal

    Uanataca is a Qualified Trust Services Provider in accordance with European Union Regulation No 910/2014 regarding electronic identification and trust services for electronic transactions (eIDAS).