diff --git a/src/transaction_builder.cpp b/src/transaction_builder.cpp
index 8b1acaca9..d821a266f 100644
--- a/src/transaction_builder.cpp
+++ b/src/transaction_builder.cpp
@@ -1,6 +1,5 @@
 // Copyright (c) 2018 The Zcash developers
 // Copyright (c) 2019-2020 The Hush developers
-// Released under the GPLv3
 
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
diff --git a/src/transaction_builder.h b/src/transaction_builder.h
index 49c09294d..39225433a 100644
--- a/src/transaction_builder.h
+++ b/src/transaction_builder.h
@@ -1,4 +1,5 @@
 // Copyright (c) 2018 The Zcash developers
+// Copyright (c) 2019-2020 The Hush developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/txdb.h b/src/txdb.h
index e089d0190..81c0bb3ad 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -63,7 +63,7 @@ protected:
 public:
     CCoinsViewDB(size_t nCacheSize, bool fMemory = false, bool fWipe = false);
 
-    bool GetSproutAnchorAt(const uint256 &rt, SproutMerkleTree &tree) const;
+    //bool GetSproutAnchorAt(const uint256 &rt, SproutMerkleTree &tree) const;
     bool GetSaplingAnchorAt(const uint256 &rt, SaplingMerkleTree &tree) const;
     bool GetNullifier(const uint256 &nf, ShieldedType type) const;
     bool GetCoins(const uint256 &txid, CCoins &coins) const;
diff --git a/src/zcash/IncrementalMerkleTree.cpp b/src/zcash/IncrementalMerkleTree.cpp
index b8b3cd183..4d3ff8c2b 100644
--- a/src/zcash/IncrementalMerkleTree.cpp
+++ b/src/zcash/IncrementalMerkleTree.cpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #include <stdexcept>
 
 #include <boost/foreach.hpp>
diff --git a/src/zcash/IncrementalMerkleTree.hpp b/src/zcash/IncrementalMerkleTree.hpp
index 1ebb2b499..ab55e8ad4 100644
--- a/src/zcash/IncrementalMerkleTree.hpp
+++ b/src/zcash/IncrementalMerkleTree.hpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #ifndef ZC_INCREMENTALMERKLETREE_H_
 #define ZC_INCREMENTALMERKLETREE_H_
 
diff --git a/src/zcash/JoinSplit.hpp b/src/zcash/JoinSplit.hpp
index 27df05db0..e7aded3c1 100644
--- a/src/zcash/JoinSplit.hpp
+++ b/src/zcash/JoinSplit.hpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #ifndef ZC_JOINSPLIT_H_
 #define ZC_JOINSPLIT_H_
 
diff --git a/src/zcash/Proof.cpp b/src/zcash/Proof.cpp
index 7ab1298a8..1a0ebfe75 100644
--- a/src/zcash/Proof.cpp
+++ b/src/zcash/Proof.cpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #include "Proof.hpp"
 
 #include "crypto/common.h"
diff --git a/src/zcash/Proof.hpp b/src/zcash/Proof.hpp
index 7c9b7f7f5..0a3d0bb14 100644
--- a/src/zcash/Proof.hpp
+++ b/src/zcash/Proof.hpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #ifndef ZC_PROOF_H_
 #define ZC_PROOF_H_
 
diff --git a/src/zcash/prf.cpp b/src/zcash/prf.cpp
index 2491de83e..9ab3d0f10 100644
--- a/src/zcash/prf.cpp
+++ b/src/zcash/prf.cpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #include "prf.h"
 #include "crypto/sha256.h"
 #include "hash.h"
diff --git a/src/zcash/util.cpp b/src/zcash/util.cpp
index 6f32bf79a..064e1cca9 100644
--- a/src/zcash/util.cpp
+++ b/src/zcash/util.cpp
@@ -1,3 +1,5 @@
+// Copyright (c) 2019-2020 The Hush developers
+
 #include "zcash/util.h"
 #include <algorithm>
 #include <stdexcept>
diff --git a/src/zcash/zip32.cpp b/src/zcash/zip32.cpp
index 15478843e..615c5896d 100644
--- a/src/zcash/zip32.cpp
+++ b/src/zcash/zip32.cpp
@@ -1,4 +1,5 @@
 // Copyright (c) 2018 The Zcash developers
+// Copyright (c) 2019-2020 The Hush developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.