Add DOI to README and page footer

README.md

@@ -12,6 +12,8 @@ short_description: Durable correction of memorized LLM errors — hub
 
 # Second Loop — Project hub
 
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.21845022.svg)](https://doi.org/10.5281/zenodo.21845022)
+
 Landing page for the three demo Spaces of the Second Loop project. Each linked
 Space is fully static (no model loaded); every number is a verbatim output of the
 live experimental run.

index.html

@@ -112,6 +112,7 @@ a{color:var(--gold);text-decoration:none;}
       <div><div class="k">Subject model</div><div class="v">Qwen2.5-3B-Instruct (frozen)</div></div>
       <div><div class="k">Independent judge</div><div class="v">Qwen2.5-7B-Instruct</div></div>
       <div><div class="k">License</div><div class="v">MIT</div></div>
+      <div><div class="k">Paper</div><div class="v"><a href="https://doi.org/10.5281/zenodo.21845022" target="_blank" rel="noopener">doi.org/10.5281/zenodo.21845022</a></div></div>
     </div>
   </header>
 
@@ -177,6 +178,7 @@ a{color:var(--gold);text-decoration:none;}
     <div class="attrib">
       Subject model Qwen2.5-3B-Instruct · independent judge Qwen2.5-7B-Instruct (both Apache-2.0,
       Alibaba Cloud). Run on a single RTX 3090 Ti. No model weights are redistributed here. Demo code: MIT.
+      Paper: <a href="https://doi.org/10.5281/zenodo.21845022" target="_blank" rel="noopener">doi.org/10.5281/zenodo.21845022</a>.
     </div>
   </footer>