Trust Directory
Independent public mirror of national PKI trust anchors, not an authority. Certificates are published by each national PKI (e.g., BCCR for Costa Rica); this site mirrors and structures them.
Intermediate CAExpired (566 days ago)

PostSignum Qualified CA 3-TSA

Czech Republic · Published by Digitální a informační agentura (DIA) — Digital and Information Agency, Czech eIDAS supervisory body and national Trusted List scheme operator

Download .pemBack to Czech Republic

The issuer "PostSignum Root QCA 2" is not present in this mirror, so the chain below starts at this certificate.

Certificate chain

Trust path from the root down to this certificate.

  1. PostSignum Qualified CA 3-TSAIntermediate CA

Certificate fields

Subject (CN)
PostSignum Qualified CA 3-TSA
Issuer (CN)
PostSignum Root QCA 2
Role
Intermediate CA
Key algorithm
RSA-2048
Validity
Expired (566 days ago)
Valid from
Valid to
Serial number
00d5
SHA-256
270b33efcde50e45211cc4dbc21e92813eb9cbd6882b973373d671c33f8ddb07
Decentralized ID (did:pki)
did:pki:cz:eska-pota-sp-i-47114983:postsignum-qualified-ca-3-tsaResolve →

This CA is addressable as a did:pki decentralized identifier, derived from its subject and resolvable to a W3C DID Document.

CRL
http://www.postsignum.cz/crl/psrootqca2.crl
http://www2.postsignum.cz/crl/psrootqca2.crl
http://postsignum.ttc.cz/crl/psrootqca2.crl
File
postsignum-qualified-ca-3-tsa.pem

Provenance

This certificate is public data published by Digitální a informační agentura (DIA) — Digital and Information Agency, Czech eIDAS supervisory body and national Trusted List scheme operator. This site mirrors and structures it; it is not the issuing authority. The SHA-256 fingerprint above is provided as tamper evidence: recompute it against the downloaded .pem to confirm integrity.

Mirror snapshot generated Jul 23, 2026, 06:57 p.m. UTC.