diff --git a/README.md b/README.md
index 88c39a94..3239dbe3 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Fixed size math
+# Fixed size 256-bit math library
 
 This is a library specialized at replacing the big.Int library for math based on 256-bit types. This is meant for use in [go-ethereum](https://github.com/ethereum/go-ethereum) eventually, once it's deemed fast, stable and secure enough. 
 
diff --git a/benchmarks_test.go b/benchmarks_test.go
index 0ce7af54..37c5c00b 100644
--- a/benchmarks_test.go
+++ b/benchmarks_test.go
@@ -1,7 +1,6 @@
-// Copyright 2019-2020 uint256 Authors.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 
diff --git a/conversion.go b/conversion.go
index 709a44da..a3aa3859 100644
--- a/conversion.go
+++ b/conversion.go
@@ -1,9 +1,6 @@
-// Copyright 2020 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
-
-// Package math provides integer math utilities.
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 
diff --git a/conversion_test.go b/conversion_test.go
index 66bfa894..a95026bc 100644
--- a/conversion_test.go
+++ b/conversion_test.go
@@ -1,7 +1,6 @@
-// Copyright 2020 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 
diff --git a/div.go b/div.go
index eeaef592..9478718b 100644
--- a/div.go
+++ b/div.go
@@ -1,3 +1,7 @@
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
 package uint256
 
 import "math/bits"
diff --git a/fuzz.go b/fuzz.go
index 42d11fb2..eb025e04 100644
--- a/fuzz.go
+++ b/fuzz.go
@@ -1,3 +1,7 @@
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
 // +build gofuzz
 
 package uint256
diff --git a/uint256.go b/uint256.go
index 67868890..4b78a0ed 100644
--- a/uint256.go
+++ b/uint256.go
@@ -1,7 +1,6 @@
-// Copyright 2019 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2018-2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 // Package math provides integer math utilities.
 
diff --git a/uint256_test.go b/uint256_test.go
index 4e623b0f..58f3111b 100644
--- a/uint256_test.go
+++ b/uint256_test.go
@@ -1,7 +1,6 @@
-// Copyright 2019 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2018-2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256