Governikus authenticates your PGP key by signing it with the key of the Governikus signature service. This is possible at: https://pgp.governikus.de
The signature key data is:
User ID: Governikus OpenPGP Signature Service (New identity card).
Date of issue: 2015-03-12 15:11
Key length: 4,096 Bit
Type: RSA
Key identifier (short): A4BF43D7
Key identifier (long): 5E5CCCB4A4BF43D7
Fingerprint: 864E 8B95 1ECF C04A F2BB 233E 5E5C CCB4 A4BF 43D7
You can download the public key here as an .asc file.
To verify the signature, import it into your PGP key management. Optionally, you can trust the Governikus signature key there afterwards to trust other PGP keys authenticated by our signature service. If you wish, you can also sign the signature key yourself.
-----BEGIN PGP PUBLIC KEY BLOCK-----
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a1E=
=XXuI
-----END PGP PUBLIC KEY BLOCK-----