eIDAS · EU Trusted List

eIDAS Qualified Timestamps from a Qualified Trust Service Provider

Qualified electronic timestamps (RFC 3161) with full legal effect in every EU Member State, trusted by Adobe and ready to integrate. Plus qualified electronic seals and Cloud Signature (CSC).

eIDAS Qualified Timestamps

Prove that a document, invoice, log or software release existed in an exact form at an exact time, with evidence that stands up in court anywhere in the EU.

We provide eIDAS Qualified Timestamps issued by a Qualified Trust Service Provider (QTSP) listed in the European Union Trusted Lists (EUTL) under the eIDAS Regulation. If you need eIDAS Qualified Timestamps with full legal effect across the EU, visit our dedicated website (https://qtsa.eu).

Qualified Electronic Timestamp

A qualified timestamp binds your data to a trusted time source and carries the presumption of accuracy and integrity under Regulation (EU) No 910/2014.

Qualified TSA service

RFC 3161 Timestamp Server

Use the standard RFC 3161 protocol from OpenSSL, Java, C#, Python, PHP or PowerShell. Integration guides with working examples are available.

Integration guides

PDF & Adobe, PAdES-LTA

Add qualified timestamps to PDF signatures in Adobe Acrobat and keep them valid for the long term with LTA archive timestamps.

Adobe timestamp setup

e-Invoicing & Archiving

Protect the integrity of electronic invoices and long-term archives with qualified archiving timestamps.

e-Invoice integrity

NIS2 & DORA Audit Logs

Make logs tamper-evident with qualified timestamps to support audit and compliance requirements.

Tamper-evident logs

Pricing & Free Test

Transparent pricing for qualified timestamps, and 50 free timestamps to test your integration first.

Qualified timestamp prices

Qualified Electronic Seals

A qualified electronic seal proves the origin and integrity of documents issued by a legal entity, such as invoices, certificates and official letters, and enjoys the presumption of integrity and correctness of origin across the EU (eIDAS Art. 35).

  • Issued to organisations, not individuals
  • Ideal for invoices, contracts and certificates
  • Combine with a qualified timestamp for long-term proof

Learn more at alfasign.ro

Cloud Signature (CSC)

Sign remotely with a cloud-based qualified electronic signature. No USB token and no software to install: the signing key stays protected in a certified environment, and applications can integrate through the Cloud Signature Consortium (CSC) API.

  • Sign from any device, anywhere
  • Standards-based CSC API for integrators
  • Pair signatures with qualified timestamps (PAdES-LTA)

Learn more at alfasign.ro

A Qualified Trust Service Provider

Our qualified trust services are provided by AlfaTrust Certification S.A., a Qualified Trust Service Provider listed in the European Union Trusted Lists under the eIDAS Regulation.

  • Listed in the EU Trusted List (EUTL)
  • Conformity-assessed and audited under eIDAS
  • Full legal effect across all EU Member States

Qualified Trust Service Provider Contact

AlfaTrust Certification S.A.

Bucharest, Romania

www.alfasign.ro

Qualified timestamps: frequently asked questions

What is an eIDAS qualified electronic timestamp?

A qualified electronic timestamp is issued by a Qualified Trust Service Provider and binds data to a point in time. Under eIDAS (Regulation (EU) No 910/2014) it enjoys the presumption of accuracy of the date and time and of the integrity of the data it is bound to, and it must be recognised in every EU Member State.

Where can I buy eIDAS qualified timestamps?

Qualified timestamps are available on our dedicated website, https://qtsa.eu, which offers an RFC 3161 endpoint, pricing, free test timestamps and integration guides.

Are qualified timestamps recognised by Adobe Acrobat?

Yes. Timestamps from a Qualified TSA listed on the EU Trusted List are trusted by Adobe, so PDF signatures can be timestamped and validated for long-term validation (PAdES-LTA).

What is the difference between a qualified and a non-qualified timestamp?

Only a qualified timestamp, issued by a QTSP on the EU Trusted List, carries the legal presumption of accuracy and integrity throughout the EU. A non-qualified timestamp has no such presumption and may be challenged in court.

Contact

Questions about qualified timestamps, seals or Cloud Signature? Write to us.

office@alfasign.eu