-----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-tkldev-18.0rc1-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-tkldev-18.0rc1-bookworm-amd64.iso
      fc62c8b2ccc3a3dcb36963fea63764a89143b1921289080096100028b593b240  turnkey-tkldev-18.0rc1-bookworm-amd64.iso

    $ sha512sum turnkey-tkldev-18.0rc1-bookworm-amd64.iso
      af8103ae300e72b4396c92f2527aea0964e0ad2b98b8504fbdba8354f386928d1e09c904e75b5cf499cb0ba7fedf097315c21cd0b15661feaadba920d010fd5e  turnkey-tkldev-18.0rc1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-tkldev-18.0rc1-bookworm-amd64.iso.hash
      turnkey-tkldev-18.0rc1-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-tkldev-18.0rc1-bookworm-amd64.iso.hash
      turnkey-tkldev-18.0rc1-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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=6+TK
-----END PGP SIGNATURE-----