-----BEGIN BITCOIN SIGNED MESSAGE-----
I'm geppettobtc from bitcointalk.org and this is my address
-----BEGIN SIGNATURE-----
191bX2Kv8yAsi1NrJEsu1Jonsij4fiB2G8
IC1aHr6lcXyYBc2rWxP3D49iiw1J3GMKw64LZ2kGNQH7NoSyFXayt+rsoAVL0p3EejDBpdPz2tdK79wYeewGJIQ=
-----END BITCOIN SIGNED MESSAGE-----
I verified it, too.
It is better if you edit your message with date and don't include your email address like some people do. Disclosing your email address will put you under attacks, like phishing.