Czechia is a full participant in the EU eIDAS framework, with qualified electronic signatures long used in business and e-government. První certifikační autorita (I.CA) is a long-established provider.
Notable qualified trust service providers
- První certifikační autorita (I.CA)
This is not an exhaustive list — the authoritative, always-current set of qualified providers is Czechia's national trusted list, indexed by the EU LOTL. Sealium validates against the live list, so new providers are recognised automatically.
How to validate Czechia signatures
Send the document to the Sealium API and it resolves Czechia's trusted list automatically, returning each signature's eIDAS level, signer, certificate chain, revocation status and timestamps as a structured report — no per-country configuration required.
Frequently asked questions
Is an electronic signature legally valid in Czechia?
Yes. As an EU participant in the eIDAS framework, Czechia recognises electronic signatures, and a qualified electronic signature (QES) has the same legal effect as a handwritten one. Czechia's qualified providers are published on its national trusted list, which is indexed by the EU List of Trusted Lists.
Who publishes Czechia's trusted list?
Czechia's trusted list is published by its national supervisory authority and referenced by the EU List of Trusted Lists, so a validator can resolve and trust it automatically.
How do I validate a Czechia electronic signature?
Check the signature against Czechia's national trusted list (via the EU LOTL): verify integrity, build the certificate chain, check revocation and any timestamp, and read the eIDAS level. Sealium does all of this in one /v1/validate API call and returns a structured report.
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