-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

To ensure the image has not been corrupted in transmit or tampered with,
perform the following two steps to cryptographically verify image integrity:

1. Verify the authenticity of this file by checking that it is signed with our
   GPG release key:

    $ curl https://raw.githubusercontent.com/turnkeylinux/common/18.x/keys/tkl-bookworm-images.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release-bookworm-images@turnkeylinux.org
      pub   rsa4096 2023-05-22 [SC] [expires: 2043-05-17]
            2614 7592 087C 0EDE 4214  3B63 7761 DEBA BBCF BA7C
      uid           [ unknown] TurnKey GNU/Linux Bookworm Images (GPG signing key for TurnKey Linux Bookworm Images) <release-bookworm-images@turnkeylinux.org>
      sub   rsa4096 2023-05-22 [S] [expires: 2043-05-17]
      
    $ gpg --verify turnkey-postgresql-18.0-bookworm-amd64.iso.hash
      gpg: Signature made using RSA key ID 26147592087C0EDE42143B637761DEBABBCFBA7C
      gpg: Good signature from "0"

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum turnkey-postgresql-18.0-bookworm-amd64.iso
      e06ee139a3fa1c8dd3d1dd748ee0452cb777d6321e0d05246d16614c763990fa  turnkey-postgresql-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-postgresql-18.0-bookworm-amd64.iso
      e5ba420d1c95fc0d25e6c7fde010e827e4e15c7d9380d641c56ad83feb83017c63f8a2737cd2b315b76a948ff9b65097f5c50bccd15a8a1a7d6f76a3306b7313  turnkey-postgresql-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-postgresql-18.0-bookworm-amd64.iso.hash
      turnkey-postgresql-18.0-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-postgresql-18.0-bookworm-amd64.iso.hash
      turnkey-postgresql-18.0-bookworm-amd64.iso: OK

    Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted.

-----BEGIN PGP SIGNATURE-----

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topuyz5MTEufJaHO39HQT/xZm2DQUrev5LFMdumN0C6bGH/NAuebEml1ToRI8KRM
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quMUbS5Ky2vPjv2DgyYKCFshJDhNhSnBeiU2zCnpKmsFiuCGOMmXc3oZ8k94Woge
+UKSDaH7NEC0YKHGm1INdZPdQZgd3gNtGIDPltnz8wSYk6zoxkOUK0/Tnar/M+NK
SNjhWGuQGUzlvgj4EVK/4nbXwoleNjHSVDsFw8+1lFsoxQaEjasfTelzheVrbo2s
FFz/UuC9u/1hAYy/qRf7lTcyOYg5vBqndLDoPc19YCkVQO1agUo8zq4qRzA9CSxu
tfcSylPRPs8aC4D90qoFsRuChM96faVtsZB/TrM4FzPYC7au6iAGM0t51KvWs6hw
eqSaklf2j/rHiQlQg8IYso9dkGLW8u0Vrm8MUhtc1Ylxm3/5gFc+iBjJuP9cseVH
XUI+qVLQOSh+Bl35eZ6LVd0Q+jYDgNu6/Q+8JO+/x5WK5hM2CEkqqJ3u0HWKIep2
AMYMB7em2sywimqJFiuP252kPuHzUQMudFftPESJxHvw7be6VgU=
=SGWK
-----END PGP SIGNATURE-----