diff --git a/sdk/cosmosdb/cosmos/src/utils/batch.ts b/sdk/cosmosdb/cosmos/src/utils/batch.ts
index 4f9bff419cbc..15274fa93725 100644
--- a/sdk/cosmosdb/cosmos/src/utils/batch.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/batch.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import { JSONObject } from "../queryExecutionContext";
 import { extractPartitionKey } from "../extractPartitionKey";
 import { PartitionKeyDefinition } from "../documents";
diff --git a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/number.ts b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/number.ts
index 288e14030e0f..40e5a938d5d6 100644
--- a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/number.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/number.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import JSBI from "jsbi";
 import { BytePrefix } from "./prefix";
 
diff --git a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/prefix.ts b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/prefix.ts
index 1d07e6318234..56db50c005ae 100644
--- a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/prefix.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/prefix.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 export const BytePrefix = {
   Undefined: "00",
   Null: "01",
diff --git a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/string.ts b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/string.ts
index 1b1618de8296..39d34025872f 100644
--- a/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/string.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/hashing/encoding/string.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import { BytePrefix } from "./prefix";
 
 export function writeStringForBinaryEncoding(payload: string) {
diff --git a/sdk/cosmosdb/cosmos/src/utils/hashing/v1.ts b/sdk/cosmosdb/cosmos/src/utils/hashing/v1.ts
index b7d26a3173f7..30babcca147b 100644
--- a/sdk/cosmosdb/cosmos/src/utils/hashing/v1.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/hashing/v1.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import { doubleToByteArrayJSBI, writeNumberForBinaryEncodingJSBI } from "./encoding/number";
 import { writeStringForBinaryEncoding } from "./encoding/string";
 import { BytePrefix } from "./encoding/prefix";
diff --git a/sdk/cosmosdb/cosmos/src/utils/hashing/v2.ts b/sdk/cosmosdb/cosmos/src/utils/hashing/v2.ts
index 3696a8767667..45398b7ee891 100644
--- a/sdk/cosmosdb/cosmos/src/utils/hashing/v2.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/hashing/v2.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import { doubleToByteArrayJSBI } from "./encoding/number";
 import { BytePrefix } from "./encoding/prefix";
 import MurmurHash from "./murmurHash";
diff --git a/sdk/cosmosdb/cosmos/src/utils/offers.ts b/sdk/cosmosdb/cosmos/src/utils/offers.ts
index f35c6cc6c243..443212bd9e48 100644
--- a/sdk/cosmosdb/cosmos/src/utils/offers.ts
+++ b/sdk/cosmosdb/cosmos/src/utils/offers.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import { ContainerRequest } from "../client/Container/ContainerRequest";
 
 export function validateOffer(body: ContainerRequest): void {
diff --git a/sdk/cosmosdb/cosmos/test/unit/hashing/v1.spec.ts b/sdk/cosmosdb/cosmos/test/unit/hashing/v1.spec.ts
index 0cdca97d21f1..290fe74aa8e2 100644
--- a/sdk/cosmosdb/cosmos/test/unit/hashing/v1.spec.ts
+++ b/sdk/cosmosdb/cosmos/test/unit/hashing/v1.spec.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import assert from "assert";
 import { hashV1PartitionKey } from "../../../src/utils/hashing/v1";
 
diff --git a/sdk/cosmosdb/cosmos/test/unit/hashing/v2.spec.ts b/sdk/cosmosdb/cosmos/test/unit/hashing/v2.spec.ts
index 784768a03a29..3620376f6ed6 100644
--- a/sdk/cosmosdb/cosmos/test/unit/hashing/v2.spec.ts
+++ b/sdk/cosmosdb/cosmos/test/unit/hashing/v2.spec.ts
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
 import assert from "assert";
 import { hashV2PartitionKey } from "../../../src/utils/hashing/v2";