diff --git a/_data/signed/ghalvorsen.yaml b/_data/signed/ghalvorsen.yaml
new file mode 100644
index 00000000..8eb4e168
--- /dev/null
+++ b/_data/signed/ghalvorsen.yaml
@@ -0,0 +1,2 @@
+name: Gunnar K. Halvorsen
+link: https://www.ux.uis.no/~gunnar/