diff --git a/paper/README.md b/paper/README.md
index 54d585f6cb..3ef2280c30 100644
--- a/paper/README.md
+++ b/paper/README.md
@@ -1,5 +1,6 @@
-<img alt="logo" src="https://rawgithub.com/yegor256/elegantobjects/master/cactus.svg" height="100px"/>
+<img alt="logo" src="https://www.objectionary.com/cactus.svg" height="100px" />
 
+[![arXiv](https://img.shields.io/badge/arXiv-2111.13384-green.svg)](https://arxiv.org/abs/2111.13384)
 [![make](https://github.com/objectionary/eo/actions/workflows/latexmk.yml/badge.svg)](https://github.com/objectionary/eo/actions/workflows/latexmk.yml)
 
 This is a more or less formal description of EOLANG and φ-calculus.