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TIMESTAMPING
What is Timestamping?
Timestamping provides cryptographic proof that a document, signature, or piece of data existed at a specific point in time. A qualified timestamp, issued by a trusted service provider (QTSP) under eIDAS or equivalent standards, uses tamper-resistant clocks synchronized to official sources, ensuring the recorded time cannot be falsified.
Unlike a local computer clock, it delivers an independent, verifiable, and legally recognized record of time. In digital signatures, timestamps prove that the signature was created within the signer’s certificate validity period.
Beyond signatures, timestamping can be used as a standalone service to protect server logs, archive financial records, anchor blockchain entries, or safeguard other sensitive information with long-term evidentiary value.
“The partnership with eID Easy offers our clients a swift and easy solution to extend their services across the European continent. Everything needed is combined in one API, eliminating the need for multiple local integrations. This leads to lower costs and faster delivery.”
Who is it for?
Industries Where Timing is Critical
Timestamping is essential for organizations that need to prove exactly when an action or event took place. Within signatures and eSeals, it guarantees that a signature was applied during the signer’s certificate validity or before a submission deadline.
As a standalone service, it provides tamper-proof evidence for records, logs, and digital assets.
- Signatures & eSeals for ensuring legal compliance and proof of timing in tenders or contracts
- Infrastructure for anchoring blockchain data or protecting logs from tampering
- Finance for archiving records with verifiable timestamps
- Legal for certifying when agreements or evidence files were created
With eID Easy, timestamping can be bundled into digital signature workflows or purchased independently, giving organizations flexibility to meet both compliance requirements and broader security needs.
How does it work
From Data to Proof of Time
Timestamping process ensures an independent and verifiable record that cannot be falsified.
- Hash generation – a SHA-256 digest is created from the file or data.
- Timestamp request – the digest is sent to a trusted timestamp authority.
- Timestamp creation – the authority signs it with their timestamping certificate.
- Proof of time – the signed timestamp is returned and embedded into the document or stored alongside the data.
Timestamps can be applied to PDF signatures, ASiC-E containers, CAdES or XAdES signatures, and even non-document data such as server logs or blockchain entries.
Independent proof of time
Certified providers guarantee accuracy and integrity.
Versatile use
Works for both digital signatures and standalone evidence.
Long-term reliability
Enables LT/LTA extensions to keep documents valid for decades.
Legal compliance
Meets eIDAS and global requirements for trusted timestamps.
Why choose eID Easy for Timestamping?
We work with multiple qualified providers and automatically switch if one has downtime, ensuring uninterrupted service. For archival signatures, we use timestamps from different providers so that even if one is compromised, the validity of your documents is preserved.
All of this is available under a single contract and API, whether you need timestamps bundled with signatures or as a standalone service.
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