-----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-leantime-18.1-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-leantime-18.1-bookworm-amd64.iso
      02e946274a3238f4df047290ede453f6b0412d2d3218d6f017f3076e57ca7312  turnkey-leantime-18.1-bookworm-amd64.iso

    $ sha512sum turnkey-leantime-18.1-bookworm-amd64.iso
      62a438af575c1003688ffa0e779844e04d6a1c381c45d7b3b6a02b002954f48f7c69cc0ffac60978414f6951202499775f0c49d56ab38479ba988051be966d14  turnkey-leantime-18.1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-leantime-18.1-bookworm-amd64.iso.hash
      turnkey-leantime-18.1-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-leantime-18.1-bookworm-amd64.iso.hash
      turnkey-leantime-18.1-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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3jf0Cw/9FPT7V6fZ9kXanSqcc+19ulrFA/PmjuWkK1HtGJQPZSZOi/Yjz7K5hY0E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=4oII
-----END PGP SIGNATURE-----