Error in Launchpad for signing the Code of Conduct

[David MENTRE]

Hello,

I'm trying to sign the Code of Conduct[1] (in order to use PPA). I have
downloaded UbuntuCodeofConduct-1.0.1.txt and signed it.

 $ gpg --clearsign UbuntuCodeofConduct-1.0.1.txt

The signature seems correct:

 $ LANG=C gpg --verify UbuntuCodeofConduct-1.0.1.txt.asc 
gpg: Signature made Mon Jul 27 19:51:27 2009 CEST using DSA key ID A3AD7A2A
gpg: Good signature from "David MENTRE <dmentre at linux-france.org>"
gpg:                 aka "David MENTRE <dmentre at ras.eu.org>"
gpg:                 aka "David MENTRE <david.mentre at gmail.com>"


However when I go to signature web page [1] and copy/paste the .asc
content[2], I get an error:

  There is 1 error.

  (7, 8, 'Bad signature')

As far as I know, my signature is correct and I have uploaded the
correct GPG key in launchpad (OpenPGP keys: A3AD7A2A).
  https://launchpad.net/~dmentre

Any idea of what might go wrong?

Sincerely yours,
david

Footnotes: 
[1]  https://launchpad.net/codeofconduct/1.0.1/+sign

[2]  
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iEYEARECAAYFAkpt6R8ACgkQbGeelqOteiqtggCeJMuQEQTL3f2Q5bT/ObJ8+gKf
D1EAn3xPZ6zCkmMfuM51IOoRu2JtT2rv
=3u4L
-----END PGP SIGNATURE-----


-- 
GPG/PGP key: A3AD7A2A David MENTRE <dmentre at linux-france.org>
 5996 CC46 4612 9CA4 3562  D7AC 6C67 9E96 A3AD 7A2A