diff --git a/keybase.txt b/keybase.txt
new file mode 100644
index 00000000..9caac60b
--- /dev/null
+++ b/keybase.txt
@@ -0,0 +1,68 @@
+==================================================================
+https://keybase.io/gijsvandam
+--------------------------------------------------------------------
+
+I hereby claim:
+
+  * I am an admin of https://www.gijsvandam.nl
+  * I am gijsvandam (https://keybase.io/gijsvandam) on keybase.
+  * I have a public key with fingerprint 0415 F6E6 D263 CFF6 EA66  395D 9D02 C330 4503 84C2
+
+To do so, I am signing this object:
+
+{
+  "body": {
+    "key": {
+      "eldest_kid": "01019896ec913540ac53109a6624dab82d8be91f62363155e94959b3d7c10c09abab0a",
+      "fingerprint": "0415f6e6d263cff6ea66395d9d02c330450384c2",
+      "host": "keybase.io",
+      "key_id": "9d02c330450384c2",
+      "kid": "01019896ec913540ac53109a6624dab82d8be91f62363155e94959b3d7c10c09abab0a",
+      "uid": "b6479cc5f61c4ec3a25ccd38a83f9419",
+      "username": "gijsvandam"
+    },
+    "service": {
+      "hostname": "www.gijsvandam.nl",
+      "protocol": "https:"
+    },
+    "type": "web_service_binding",
+    "version": 1
+  },
+  "ctime": 1613964317,
+  "expire_in": 157680000,
+  "prev": "e4f579e6fc3d2fc631137e855b598c6c43eb3587e75edaadf1edc6403e50cf36",
+  "seqno": 39,
+  "tag": "signature"
+}
+
+which yields the signature:
+
+-----BEGIN PGP MESSAGE-----
+Version: Keybase OpenPGP v2.1.13
+Comment: https://keybase.io/crypto
+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+=QRNz
+-----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/gijsvandam
+
+==================================================================