diff --git a/_data/signed/erthink.yaml b/_data/signed/erthink.yaml
new file mode 100644
index 000000000..de2fe38ec
--- /dev/null
+++ b/_data/signed/erthink.yaml
@@ -0,0 +1,2 @@
+name: Леонид Юрьев (Leonid Yuriev)
+link: https://github.com/erthink