diff --git a/packages/mosaic/framework/tools/wake/store.sh b/packages/mosaic/framework/tools/wake/store.sh
index 3222b789..c979e5a0 100755
--- a/packages/mosaic/framework/tools/wake/store.sh
+++ b/packages/mosaic/framework/tools/wake/store.sh
@@ -110,9 +110,13 @@ Commands:
                                          found); --repair removes exactly those
                                          rows (atomic, loud). The dead-letter
                                          ledger itself is NEVER modified (it is
-                                         history). Rows whose dead-letter evidence
-                                         was pruned are NOT provable and are
-                                         never touched.
+                                         history). TWO residual classes are
+                                         unprovable and never touched (#952):
+                                         rows whose dead-letter evidence was
+                                         pruned away, AND rows whose surviving
+                                         evidence extracts an empty
+                                         observed_hash (it can never satisfy
+                                         the four-field conviction match).
   cursors                                Print observed_seq / consumed_seq / depth.
 
 Environment: