diff --git a/contributors/antorfr.md b/contributors/antorfr.md
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+2021-08-27
+
+I hereby agree to the terms of the Contributors License
+Agreement, version 2.0, with MD5 checksum
+143da42902fd29612270cc1e4c7b5296.
+
+I furthermore declare that I am authorized and able to make this
+agreement and sign this declaration.
+
+Signed,
+
+Sébastien BERARD
+https://github.com/antorfr