- The first company to issue eIDAS qualified time stamps
- Trust service provider included in the European Trust List
- Tens of millions of time stamps a month issued to customers all over the world
SK ID Solutions time stamp proves the existence of specific data at a certain point of time – no one is able to change data once it’s saved and confirmed with the time stamp. It is, therefore, widely used in digital signing or archiving documents.
SK ID Solutions qualified timestamping service uses PKI and trusted time sources to provide secure and reliable information that is compatible with international standards (RFC 3161). The SK ID Solutions time stamp can be used and is valid all over the world.
SK ID Solutions issues tens of millions of time stamps a month to customers all over the world
- For long term electronic signatures
- Signing and archiving
- Stamping technical logs
- Legal evidence of the existence of any data at a particular time
- Confirmation of issuing or receiving any data (invoice, transaction, document)
- Proof of time for transactions and documents
- Proof of intellectual property (photos, trademarks etc.)
- IP-based access
- Corresponds to RFC 3161 specification
- Free demo
- Public Key Infrastructure (PKI)
- Trusted time sources
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Banking and fintech
Professional associations
Insurance
Medical practices
Telecommunications
Governmental institutions
Notaries
Software developers
Governmental institutions
Timestamping is a way to prove that specific data existed at a certain point in time and has not been changed since then.
It works by creating a unique digital fingerprint, called a hash, and linking it to a trusted time source using a digitally signed timestamp. Unlike a normal file date on your computer, a trusted timestamp cannot simply be changed locally.
A qualified electronic timestamp provides an additional level of legal assurance. Under the EU eIDAS regulation, it must be issued by a Qualified Trust Service Provider (QTSP) listed in the European Trusted List. This means the timestamp is legally recognized across the EU and can be used as evidence in compliance and audit scenarios.
You can verify SK ID Solutions in the official EU Trusted List of Qualified Trust Service Providers.
Timestamping proves that data hasn’t been changed by recording when it existed and making any later modification visible.
A timestamping service does this by generating a hash of the data (a unique digital fingerprint) and linking it to a trusted time source. The result is a signed timestamp token that acts as proof. If the data is modified later, the hash no longer matches, making any change immediately visible.
This is what is known as data integrity – the ability to prove that data has remained unchanged since a specific point in time.
Yes, SK ID Solutions is compliant with the EU eIDAS regulation and operates as a Qualified Trust Service Provider, which means its services meet strict compliance and technical requirements.
SK’s qualified timestamping service also uses the RFC 3161 Time Stamp Protocol over standard web-based communication, making it easy to integrate with existing systems, supporting compatibility with standard timestamping implementations. This makes it a trusted timestamping service suitable for compliance, audit, document signing, archiving, and other regulated use cases.
You can verify SK ID Solutions in the official EU Trusted List of Qualified Trust Service Providers.
A timestamp authority (TSA) is essentially the trusted engine behind a timestamping service. It’s the component that creates and signs timestamps.
The TSA receives a hash of the data, links it to a trusted time source, and returns a signed timestamp token. This token can later be used to verify that the data existed at that time and has not been changed since.
In qualified timestamping, the TSA operates under regulatory and technical requirements such as eIDAS and relevant timestamping standards.
Yes, you can try the timestamping service in a dedicated testing environment free of charge, with no contract required.
We’ve made it easy to get started – no IP whitelisting or setup headaches, so you can focus on testing your use case. Demo credentials are available via GitHub.
Yes. Our qualified timestamping service is designed for high-volume and high-frequency environments, where reliability is critical.
SK ID Solutions has maintained 100% service availability since August 2022 and issues tens of millions of timestamps each month. The service is widely used in business-critical environments such as banking, healthcare, utilities, and document management.
In most cases, integrating the timestamping service takes only a few days, depending on the complexity of your system.
The qualified timestamping setup is designed to work with standard protocols, so teams can usually start implementing timestamping without heavy customization.
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You can cancel your SK ID Solutions’ Qualified Timestamping Service subscription anytime by notifying us via email: ue.snoitulosdiks@selas
The contract will end at the end of your monthly subscription term.