-----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-etherpad-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-etherpad-18.0-bookworm-amd64.iso
      b695800eb6231d2f066a722de5fa113bace54c8f2fcd712ffbdf740afce017fd  turnkey-etherpad-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-etherpad-18.0-bookworm-amd64.iso
      1664386f1edfc94424dbe0d90bcd3c610370f38a64f25df26fe2e4374de40b2449dae3825de46dcc754afbc66f19e745d6e3ad2355d90390482ee9038328d8bd  turnkey-etherpad-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-etherpad-18.0-bookworm-amd64.iso.hash
      turnkey-etherpad-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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aMWx7zCKVnmqm9GGqcgGxmxHqz5gQALGKF+asXxU6lwCLUoBQ2jdVPJsIZvI4v4w
GNAmu46IdIQX033MTj9PRMwUBM22vkdFJIewG5vmOZFqVcCv6bRPsUPbinwtApGI
zQAhtZZ9HM2jiNKVHwIZbHfBOp1FiYd8DP1w48VNuEJri/Ias/m4Fy7lTzVXcaoT
w5u3IyCb3A0yGFsVZiyNcN4cRbHLvBEni7uYaSMyPWhzahE5G1jN1Ac3MDX5L1JC
K4Q6YMWml9NGuMkk9G0N/Aocu53X6Em9rn7DzHzp5NG7g1ayOxgGURigEEVe5FwK
CiH1ZKD4lE5UlKABE+alwLrzLOgp741m5d/TXUw6SoFbFcVtk/xOW9vXFSMqOo6N
Y2qVdN6W/tE/6Z2YmSN6gwIuwMrZ5b1/hC2RLs989FRwVcC/1uC7lpbuWmU67BAN
NIO7e8mek+mu2qqglzbwN8Rxug/TkIj681U8B8GdUwJpArMxT+0z8LVgPewYPfs5
9PMbd3Cx4Q4qBXwExPWigbJhR89Qaaqz3HWMS4lFbgDzpFEkFLo=
=5C5X
-----END PGP SIGNATURE-----