Since 9 September 2013, I use the following OpenPGP/GnuPG public key. This key can also be found on keybase.io.
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.12 (GNU/Linux)
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=V+Tg
-----END PGP PUBLIC KEY BLOCK-----
Prior to that date, I used the following public key:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.12 (GNU/Linux)
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Bq0lPGekkg1/HDjWfmA=
=w5oG
-----END PGP PUBLIC KEY BLOCK-----