diff --git a/_data/signed/Demonstrandum.yaml b/_data/signed/Demonstrandum.yaml
new file mode 100644
index 000000000..8bd697987
--- /dev/null
+++ b/_data/signed/Demonstrandum.yaml
@@ -0,0 +1,2 @@
+name: Samuel Fredrik David Knutsen
+link: https://knutsen.co/