diff --git a/notes.md b/notes.md
index e5d2d537ca..c1d8f85eeb 100644
--- a/notes.md
+++ b/notes.md
@@ -223,3 +223,4 @@
 2021-05-12T00:26:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (onnxruntime)
 2021-05-12T22:29:00 - Implementing approach from a new paper read last night (onnxruntime)
 2021-07-10T20:12:00 - Implementing approach from a new paper read last night (onnxruntime)
+2021-07-10T17:56:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (onnxruntime)