diff --git a/emulators/blastem.yml b/emulators/blastem.yml
index 10a0f005..fa5d09a8 100644
--- a/emulators/blastem.yml
+++ b/emulators/blastem.yml
@@ -5,6 +5,7 @@ source: "https://github.com/libretro/blastem"
 upstream: "https://www.retrodev.com/blastem/"
 profiled_date: "2026-10-20"
 source_commit: "1e0de94dc7e669c0925a22c0fccf6cdc837af0a0"
+prose_written_at: "1e0de94dc7e669c0925a22c0fccf6cdc837af0a0"
 core_version: "1.0.1-pre"
 display_name: "Sega - Mega Drive - Genesis (BlastEm)"
 cores: