-----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  | 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-joomla4-18.0-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-joomla4-18.0-bookworm-amd64.iso
      66c44ffbe6d5e65012608c7606f18a538b3f2d5565c57d88db9c409107b43e0d  turnkey-joomla4-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-joomla4-18.0-bookworm-amd64.iso
      344fcf53f8841c37597a72e89516d69f466f06134a123dda96499d11e97d8da3c42a73e23b15374896ab59b9767ba486a5e624cc42190d159d0b5e0617b19c49  turnkey-joomla4-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-joomla4-18.0-bookworm-amd64.iso.hash
      turnkey-joomla4-18.0-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-joomla4-18.0-bookworm-amd64.iso.hash
      turnkey-joomla4-18.0-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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=qlM+
-----END PGP SIGNATURE-----