diff --git a/swh/model/tests/swh_model_data.py b/swh/model/tests/swh_model_data.py
--- a/swh/model/tests/swh_model_data.py
+++ b/swh/model/tests/swh_model_data.py
@@ -120,7 +120,7 @@
         ),
     ),
     Revision(
-        id=hash_to_bytes("677063f5c405d6fc1781fc56379c9a9adf43d3a0"),
+        id=hash_to_bytes("c7f96242d73c267adc77c2908e64e0c1cb6a4431"),
         message=b"hello again",
         date=DATES[1],
         committer=COMMITTERS[1],
@@ -261,7 +261,7 @@
 DIRECTORIES = [
     Directory(id=hash_to_bytes("4b825dc642cb6eb9a060e54bf8d69288fbee4904"), entries=()),
     Directory(
-        id=hash_to_bytes("21416d920e0ebf0df4a7888bed432873ed5cb3a7"),
+        id=hash_to_bytes("87b339104f7dc2a8163dec988445e3987995545f"),
         entries=(
             DirectoryEntry(
                 name=b"file1.ext",
@@ -285,7 +285,7 @@
 
 SNAPSHOTS = [
     Snapshot(
-        id=hash_to_bytes("17d0066a4a80aba4a0e913532ee8ff2014f006a9"),
+        id=hash_to_bytes("9e78d7105c5e0f886487511e2a92377b4ee4c32a"),
         branches={
             b"master": SnapshotBranch(
                 target_type=TargetType.REVISION, target=REVISIONS[0].id
@@ -293,7 +293,7 @@
         },
     ),
     Snapshot(
-        id=hash_to_bytes("8ce268b87faf03850693673c3eb5c9bb66e1ca38"),
+        id=hash_to_bytes("09efffaaad8d1f9c7f9402db0266dbe28082853f"),
         branches={
             b"target/revision": SnapshotBranch(
                 target_type=TargetType.REVISION, target=REVISIONS[0].id,
diff --git a/swh/model/tests/test_swh_model_data.py b/swh/model/tests/test_swh_model_data.py
--- a/swh/model/tests/test_swh_model_data.py
+++ b/swh/model/tests/test_swh_model_data.py
@@ -18,6 +18,16 @@
         attr.validate(obj)
 
 
+@pytest.mark.parametrize(
+    "object_type", ("directory", "revision", "release", "snapshot"),
+)
+def test_swh_model_data_hash(object_type):
+    for obj in TEST_OBJECTS[object_type]:
+        assert (
+            obj.compute_hash() == obj.id
+        ), f"{obj.compute_hash().hex()} != {obj.id.hex()}"
+
+
 def test_ensure_visit_visit_status_date_consistency():
     """ensure origin-visit-status dates are more recent than their visit counterpart