-----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-lamp-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-lamp-18.0-bookworm-amd64.iso
      69c46de9873397198e13e0bd4992f6fbfd1ba5654f4c5fea3cc61295787e615a  turnkey-lamp-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-lamp-18.0-bookworm-amd64.iso
      731981ed7975584e8374afd0406bda0f7610c7a8f50212ac068bc266c39d07473d21b319790bc49574e374f1e37d15f16223ac3088bb4ff764e91783a5570b6a  turnkey-lamp-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-lamp-18.0-bookworm-amd64.iso.hash
      turnkey-lamp-18.0-bookworm-amd64.iso: OK

    Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted.

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rhs9LG0ruUrLyv9VhNHeSfgB65NqmAtbnxSRcSZUXnPWNiYg7hGOuidekvr0p+wF
HNtaQFBEEEr8pU4enEZ9wxLqbUIioZ+3bDMfP3arjR9FhAp6NTxe2vxMY/fexBdr
wLFbdAo5ecxSU0sfw/zEsrnGvC7DA3S1ezqpvfPT5SE+y3fulPRce58RdadLxtBI
YGYeefFoeW6NvGdunXq1p5K7LfS1PE+LaVNnnkJxiO4dYqqiI/noOFzBBWuG8ma7
grgsW9yPQ+jo+xg0ltRNzOfvNHkVaIZh/2xjt8Imamo02x0+uQoHz7ChRRO9m5ct
Ah8vmJNKl8Rslj9UDLiwazqa+gGBRCa23CLhiEjDZxLbGX5xnAyOZPRgAMIL7T9H
x0oZhhxzXmyaAxyUBu+VXqoFo2jnw6kGNgzTIXdSdt7UZqNAnN0=
=BCy5
-----END PGP SIGNATURE-----