-----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-18.0rc1-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-core-18.0rc1-bookworm-amd64.iso
      9c047bafdaf11f3cde2c998e5265e59264b104e29713f3e00c7f1ac079f12900  turnkey-core-18.0rc1-bookworm-amd64.iso

    $ sha512sum turnkey-core-18.0rc1-bookworm-amd64.iso
      50d1be5a5cc951d02c287cd320772d97850c8c141897bccb1a593f9ba0651d80795a5ba2c498fb639b6458cec76bcdeb4531567635b47d3ac9ff53129e1b7139  turnkey-core-18.0rc1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-core-18.0rc1-bookworm-amd64.iso.hash
      turnkey-core-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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3o6r0ZMEsMfRGmhi9D2zoN4mdldOtg32iVzqOp0yxoV/u9AZKyT9bLZTW70Bnq4m
AVZx/k1lwRRSaGIiLwRvxslXdvvrPUfZtHCgTSMl2YVVaVL9c2NMspTegj/UKLfM
Gc5kjOiFfQwFuyP+8dEMgNRtMnLU0LBze9lDEt9zMsyH61FxzPtoc1Q8fyWje54t
W/NYIvB65t2TBJxmzpCFfZXGf6nSsOuI9KBnLq1xclG+RYfOVZuyIx/TLLqMe3HX
YTw6FtxOAG8UrRSN2LmxJEKMynhyiBxkLBL0SZ0aEu/lBP/A2BuMM9ZXF+EiJL0+
W/aC2tX8aFRcTZa/tqWl+uxiTtH4vLa8jK9Eggy3SkucWT3+DZXCoGKD+HzH2/v4
5vRquvUQvhU+N7zb4sWkHZdwiYCJNaaSqrW+TpgJnDrZSDcp45YFxDImHt1xWdVv
cfob91RyzE+cHtcRciyOFJjV5XWnC7RIndUUH7GcWPzVjTvUJCtESdVA3whb70wX
mbwI8LITl+LqU/LIcNY00kKGBbQqmxmZQf/zp/NZIJP3nm1N1Z8=
=U1iT
-----END PGP SIGNATURE-----