diff --git a/swh/provenance/__init__.py b/swh/provenance/__init__.py
--- a/swh/provenance/__init__.py
+++ b/swh/provenance/__init__.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
diff --git a/swh/provenance/archive.py b/swh/provenance/archive.py
--- a/swh/provenance/archive.py
+++ b/swh/provenance/archive.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from typing import Any, Dict, Iterable
 
 from typing_extensions import Protocol, runtime_checkable
diff --git a/swh/provenance/cli.py b/swh/provenance/cli.py
--- a/swh/provenance/cli.py
+++ b/swh/provenance/cli.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2020  The Software Heritage developers
+# Copyright (C) 2021  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
diff --git a/swh/provenance/graph.py b/swh/provenance/graph.py
--- a/swh/provenance/graph.py
+++ b/swh/provenance/graph.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from __future__ import annotations
 
 from datetime import datetime, timezone
diff --git a/swh/provenance/interface.py b/swh/provenance/interface.py
--- a/swh/provenance/interface.py
+++ b/swh/provenance/interface.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from dataclasses import dataclass
 from datetime import datetime
 import enum
diff --git a/swh/provenance/origin.py b/swh/provenance/origin.py
--- a/swh/provenance/origin.py
+++ b/swh/provenance/origin.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from itertools import islice
 import logging
 import time
diff --git a/swh/provenance/postgresql/archive.py b/swh/provenance/postgresql/archive.py
--- a/swh/provenance/postgresql/archive.py
+++ b/swh/provenance/postgresql/archive.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from typing import Any, Dict, Iterable, List
 
 from methodtools import lru_cache
diff --git a/swh/provenance/postgresql/provenancedb_base.py b/swh/provenance/postgresql/provenancedb_base.py
--- a/swh/provenance/postgresql/provenancedb_base.py
+++ b/swh/provenance/postgresql/provenancedb_base.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from datetime import datetime
 import itertools
 import logging
diff --git a/swh/provenance/postgresql/provenancedb_with_path.py b/swh/provenance/postgresql/provenancedb_with_path.py
--- a/swh/provenance/postgresql/provenancedb_with_path.py
+++ b/swh/provenance/postgresql/provenancedb_with_path.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from typing import Generator, Optional
 
 from swh.model.model import Sha1Git
diff --git a/swh/provenance/postgresql/provenancedb_without_path.py b/swh/provenance/postgresql/provenancedb_without_path.py
--- a/swh/provenance/postgresql/provenancedb_without_path.py
+++ b/swh/provenance/postgresql/provenancedb_without_path.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from typing import Generator, Optional
 
 from swh.model.model import Sha1Git
diff --git a/swh/provenance/provenance.py b/swh/provenance/provenance.py
--- a/swh/provenance/provenance.py
+++ b/swh/provenance/provenance.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from datetime import datetime
 import logging
 import os
diff --git a/swh/provenance/revision.py b/swh/provenance/revision.py
--- a/swh/provenance/revision.py
+++ b/swh/provenance/revision.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from datetime import datetime, timezone
 import logging
 import os
diff --git a/swh/provenance/storage/archive.py b/swh/provenance/storage/archive.py
--- a/swh/provenance/storage/archive.py
+++ b/swh/provenance/storage/archive.py
@@ -1,3 +1,8 @@
+# Copyright (C) 2021  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from datetime import datetime
 from typing import Any, Dict, Iterable, Set, Tuple