diff --git a/osclib/origin.py b/osclib/origin.py
index 4b8f5ea0..bb4f05e5 100644
--- a/osclib/origin.py
+++ b/osclib/origin.py
@@ -480,3 +480,31 @@ def policy_input_evaluate_reviews_not_allowed(policy, inputs):
             reviews_not_allowed.append(review_remaining)
 
     return reviews_not_allowed
+
+def origin_revision_state(apiurl, target_project, package, origin_info=None, limit=10):
+    if not origin_info:
+        origin_info = origin_find(apiurl, target_project, package)
+
+    revisions = []
+
+    # Allow for origin project to contain revisions not present in target by
+    # considering double the limit of revisions. The goal is to know how many
+    # revisions behind the package in target project is and if it deviated from
+    # origin, not that it ended up with every revision found in origin project.
+    origin_project = origin_info.project.rstrip('~')
+    origin_hashes = list(package_source_hash_history(apiurl, origin_project, package, limit * 2, True))
+    target_hashes = list(package_source_hash_history(apiurl, target_project, package, limit))
+    for source_hash in origin_hashes:
+        if source_hash not in target_hashes:
+            revisions.append(-1)
+        else:
+            break
+
+    for source_hash in target_hashes:
+        if len(revisions) == limit:
+            break
+
+        revisions.append(int(source_hash in origin_hashes))
+
+    # To simplify usage which is left-right (oldest-newest) place oldest first.
+    return list(reversed(revisions))