-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release@turnkeylinux.com
      pub   2048R/A16EB94D 2008-08-15 [expires: 2023-08-12]
            Key fingerprint = 694C FF26 795A 29BA E07B  4EB5 85C2 5E95 A16E B94D
      uid   Turnkey Linux Release Key <release@turnkeylinux.com>

    $ gpg --verify turnkey-trac-15.1-stretch-amd64.iso.hash
      gpg: Signature made using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key <release@turnkeylinux.com>"

    For extra credit you can validate the key's authenticity at:

      https://keybase.io/turnkeylinux

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum turnkey-trac-15.1-stretch-amd64.iso
      0e4a98f37f1370d64777733eb09cc022c0f6518b268070a5a94602a88a9b52e3  turnkey-trac-15.1-stretch-amd64.iso

    $ sha512sum turnkey-trac-15.1-stretch-amd64.iso
      db846756df0a4a0d6799a4899c84b53fce0ec33f2c10262269acf585dd2b01f260f9143f1247f7470b2aa1f46f869dc3887d76c2e80b30fb9b9c6d13961442a4  turnkey-trac-15.1-stretch-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-trac-15.1-stretch-amd64.iso.hash
      turnkey-trac-15.1-stretch-amd64.iso: OK

    $ sha512sum -c turnkey-trac-15.1-stretch-amd64.iso.hash
      turnkey-trac-15.1-stretch-amd64.iso: OK

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PWRN4TX/7WuZrdepz7kbvXV+jS6OiBoWWdjnkfyhfo/pWB4eiMt1EHNFppCirEzu
fz9Mf/Is063qtgEmKVGiYsTqB8apF3cvhDJY9qOpIWYT2jj/rHCTiijyKp0ziNlZ
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HkrddSbbgDQWqGp6pfcSkM6YAUKOBg==
=P/dR
-----END PGP SIGNATURE-----