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+* Data model
+** Data model
+   :PROPERTIES:
+   :CUSTOM_ID: merklestruct
+   :END:
+   #+BEAMER: \centering \includegraphics[width=\textwidth]{swh-data-model-h}
+*** 
+    A *global graph* linking together fully *deduplicated* source code artifact
+    (files, commits, directories, releases, etc.) to the places that distribute
+    them (e.g., Git repositories), providing a *unified view* on the entire
+    */Software Commons/*.