diff --git a/keybase.txt b/keybase.txt
new file mode 100644
index 0000000..9c921fa
--- /dev/null
+++ b/keybase.txt
@@ -0,0 +1,68 @@
+==================================================================
+https://keybase.io/teascade
+--------------------------------------------------------------------
+
+I hereby claim:
+
+  * I am an admin of http://teasca.de
+  * I am teascade (https://keybase.io/teascade) on keybase.
+  * I have a public key with fingerprint 1688 BA8D 8F2E 2E5B F11C  7E2B 64A5 AE50 2065 6E2E
+
+To do so, I am signing this object:
+
+{
+    "body": {
+        "key": {
+            "eldest_kid": "010194d0fbd784a27e32bee2e574d3a3a884f6f8368abaf38b250ecf0501413a28c90a",
+            "fingerprint": "1688ba8d8f2e2e5bf11c7e2b64a5ae5020656e2e",
+            "host": "keybase.io",
+            "key_id": "64a5ae5020656e2e",
+            "kid": "010194d0fbd784a27e32bee2e574d3a3a884f6f8368abaf38b250ecf0501413a28c90a",
+            "uid": "ee4a0be7dfbc8d8b2766de4fa5504219",
+            "username": "teascade"
+        },
+        "service": {
+            "hostname": "teasca.de",
+            "protocol": "http:"
+        },
+        "type": "web_service_binding",
+        "version": 1
+    },
+    "ctime": 1478253579,
+    "expire_in": 157680000,
+    "prev": "f5e2246f42fd747ba8aa1021025bdd55375dc58a2f83997ba778193cc1cc7c5e",
+    "seqno": 10,
+    "tag": "signature"
+}
+
+which yields the signature:
+
+-----BEGIN PGP MESSAGE-----
+Version: Keybase OpenPGP v2.0.58
+Comment: https://keybase.io/crypto
+
+yMIfAnicrZJbSBVBGMePngwvWD4kYgTp9pJhurfZ2ZXyoRBNy0sZ5a3DzM6sbuqe
+0zmrpVbqg6h0IaReEsqHSoqwtEglKk9KYWaRSgpCoE9hGARKolDNSj0EPTYMDPPN
+//vN//tmRqLdrsiQzvG26j0FPVEhY8GrNa7j20qjGjjsJXVcWgNXSdcXWkVowPZU
+moRL43iBFzSZ8AYmUJWRCKkkYkpFCqBMJCQhVZUNxVAlRUUYGZKKRcBT3eABL8iC
+hERV13jEJXOGaZVTv89vWjbDCoqqYqQS1RAdFjYEQYdUxIqMAKKAF3kFKOyEJVZ4
+A04GM4dRgKaYXhZjG8+6vX/o/7PvmnUcpTLiMYXEwDpzjUWoKITKBgKAl0VBc4QB
+6rdQNWVqm6KAjgjlziVzLFpr6tRprFPJX4oU4hj2+b22V/dWsXCFbfvSnCy7zufI
+TlPs+Q3wYNMirIcsoZb6A6bX4tIEptRt0yEKMlRFIAGoJXP0jM/0U4/pKABUVJ4N
+5xpay5AGoKIoK4YsGgTKkD0CQgIvsgkwIQBIEBAdqEhkvdE0dg6hKmiSrgu6DnXg
+GA7QU5aXsRnURuWMGTDLLWTX+FnBL4dKN7hCIl0bw0Kdz+WKjIj58+VgRLhrcGmt
+mby6llk2tre/J+PsrcGirttjt+d7V2bcZcLqwJvsPn45JnwH0mMOnuxruuxJyZqY
+Gp/DBY3Bxe7Elvzi5QPWj/bgz864mbcleYt3OnZdGhhK/Zra9Y1f6H4+3jo1H59Y
+X5he/XB1NHh0LvbZfm3s8we00i4MR94fmumfaPsYO5qx0qujuMMlPV8Glh5daUla
+oWvnZevig+mcyd2Gu/Z1+sC9abn4aaEvp2gyf19m7nSIK2b7e8Ha+eIE3FS45d3m
+J6HNwyC24dhy4uxCZ/ynsK11hxZGJoY6Gh9XX8jVbuS47462N/GzCcGs7O9HukMT
++nFX6/W8hJvRmUn1vwBS50D6
+=ZJf7
+-----END PGP MESSAGE-----
+
+And finally, I am proving ownership of this host by posting or
+appending to this document.
+
+View my publicly-auditable identity here: https://keybase.io/teascade
+
+==================================================================