-----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 debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz.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 debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz
      f06f18a350b318be2f20357d420be2d56259b9420b9d1e7452243b104fc4d7c8  debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz

    $ sha512sum debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz
      a13705dfcae1441312955a41e324215e591d037f6a8174f7163970c8596275c8ad94f2ec85421c762c6734bfdf2a051c82701cbd0e2b18e15f389c623a49c514  debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz

   Note, you can compare hashes automatically::

    $ sha256sum -c debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz: OK

    $ sha512sum -c debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-postgresql_18.1-1_amd64.tar.gz: OK

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

-----BEGIN PGP SIGNATURE-----
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=OW34
-----END PGP SIGNATURE-----