diff --git a/content/notes/think-writing.md b/content/notes/think-writing.md
index b38c23944..058e930c2 100644
--- a/content/notes/think-writing.md
+++ b/content/notes/think-writing.md
@@ -267,3 +267,7 @@ What happens if a participant is caught being untruthful? Can they be automatica
 
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+https://www.researchgate.net/publication/321474197_Blockchain_Based_Wine_Supply_Chain_Traceability_System
+- [wine supply chain entities](https://i.imgur.com/9D0tsVF.png)
+	- could be very similar to organic food supply chain
+-