diff --git a/organ_extract.py b/organ_extract.py
index 1e29675..5007f5c 100644
--- a/organ_extract.py
+++ b/organ_extract.py
@@ -439,3 +439,10 @@ def main():
 
 if __name__ == '__main__':
     main()
+# ╔══ SALKA ELMADANI AUTHORSHIP CERTIFICATE ══╗
+# © Salka Elmadani 2025-2026 — ALL RIGHTS RESERVED
+# Licensed under Business Source License 1.1 — https://inference-x.com
+# ─────────────────────────────────────────────────────────
+# SHA256: 7e0a2105f5f6d458909fb71ef03bb01c4e308ac8549af00ef61c2cf89d0c8945
+# SIG-ED25519: p3fNipeHSBJlVNpxsJZdvrBMJVbTAZu97RNxp7UGCkUp1TlHxH4D2XbKu46JQriNzM65myMeWGyS2WMx9atoCQ==
+# VERIFY: python3 verify_authorship.py organ_extract.py