-----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-core-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-core-18.0-bookworm-amd64.iso
      5cf017d2befe91556c8b79311ec6ec8a66f9ecf1bf358c182306196cfaa2ddde  turnkey-core-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-core-18.0-bookworm-amd64.iso
      6bd1a7103efa2ab1ec8d6a959fc721e77e30b418290b0a461563cb8d23e7ce534b382e2fe01ddca0abc37a3d4c071afbb42f6d5d0f96920e5da4937d333a6399  turnkey-core-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-core-18.0-bookworm-amd64.iso.hash
      turnkey-core-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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TJcBDw27PFo7IAamYvSX/JbHv1cg2APY8uRHKB6fbcI54FRmeInk7GIA+RgVn9Pj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=W8Lm
-----END PGP SIGNATURE-----