diff --git a/LICENSES/Unlicense.md b/LICENSES/Unlicense.md
new file mode 100644
index 0000000..7f6e5ae
--- /dev/null
+++ b/LICENSES/Unlicense.md
@@ -0,0 +1,27 @@
+Unlicense (Public Domain)
+============================
+
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to &lt;<https://unlicense.org/>&gt;
diff --git a/serialization/bson/ReadMe.md b/serialization/bson/ReadMe.md
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index 0000000..8ed22c7
--- /dev/null
+++ b/serialization/bson/ReadMe.md
@@ -0,0 +1,11 @@
+<!--
+SPDX-FileCopyrightText: 2021 KOLANICH
+
+SPDX-License-Identifier: Unlicense
+-->
+
+## bson.bson
+
+Some blob of data serialized into BSON.
+
+Source: Own work.
diff --git a/serialization/bson/bson.bson b/serialization/bson/bson.bson
new file mode 100644
index 0000000..e315738
Binary files /dev/null and b/serialization/bson/bson.bson differ
diff --git a/serialization/bson/bson.bson.license b/serialization/bson/bson.bson.license
new file mode 100644
index 0000000..8fbda30
--- /dev/null
+++ b/serialization/bson/bson.bson.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021 KOLANICH
+
+SPDX-License-Identifier: Unlicense 
diff --git a/serialization/bson/generate.py b/serialization/bson/generate.py
new file mode 100755
index 0000000..0d80fb7
--- /dev/null
+++ b/serialization/bson/generate.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+import datetime
+import decimal
+from pathlib import Path
+
+import dateutil.tz
+
+import bson
+
+__license__ = "Unlicense"
+
+etalon_dict = {
+	"kaitai": ["is", "awesome"],
+	"bin": b"bin",
+	"int": 2,
+	"float": 3.0,
+	"NaN": float("nan"),
+	"inf": float("inf"),
+	"decimal": decimal.Decimal(100500),
+	"null": None,
+	"ts": datetime.datetime(1970, 1, 1, 0, 0, tzinfo=dateutil.tz.tzutc())
+}
+
+
+if __name__ == "__main__":
+	f = Path("bson.bson")
+	f.write_bytes(bson.dumps(etalon_dict))