diff --git a/src/cryptoconditions/src/anon.c b/src/cryptoconditions/src/anon.c
index 6e21cabf4..9eb30325e 100644
--- a/src/cryptoconditions/src/anon.c
+++ b/src/cryptoconditions/src/anon.c
@@ -21,10 +21,8 @@
 #include "include/cJSON.h"
 #include "cryptoconditions.h"
 
-
 struct CCType CC_AnonType;
 
-
 CC *mkAnon(const Condition_t *asnCond) {
 
     CCType *realType = getTypeByAsnEnum(asnCond->present);
diff --git a/src/cryptoconditions/src/cryptoconditions.c b/src/cryptoconditions/src/cryptoconditions.c
index 601a54009..e9795dedf 100644
--- a/src/cryptoconditions/src/cryptoconditions.c
+++ b/src/cryptoconditions/src/cryptoconditions.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -13,7 +15,6 @@
  * Removal or modification of this copyright notice is prohibited.            *
  *                                                                            *
  ******************************************************************************/
-
 #include "strings.h"
 #include "asn/Condition.h"
 #include "asn/Fulfillment.h"
@@ -29,10 +30,8 @@
 #include "src/eval.c"
 #include "src/json_rpc.c"
 #include <cJSON.h>
-
 #include <stdlib.h>
 
-
 struct CCType *CCTypeRegistry[] = {
     &CC_PreimageType,
     &CC_PrefixType,
diff --git a/src/cryptoconditions/src/ed25519.c b/src/cryptoconditions/src/ed25519.c
index e1e4bda95..ac92e00c3 100644
--- a/src/cryptoconditions/src/ed25519.c
+++ b/src/cryptoconditions/src/ed25519.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -22,7 +24,6 @@
 #include "include/ed25519/src/ed25519.h"
 #include "cryptoconditions.h"
 
-
 struct CCType CC_Ed25519Type;
 
 
diff --git a/src/cryptoconditions/src/eval.c b/src/cryptoconditions/src/eval.c
index fca557c6a..d2f843972 100644
--- a/src/cryptoconditions/src/eval.c
+++ b/src/cryptoconditions/src/eval.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -22,7 +24,6 @@
 #include "internal.h"
 #include "include/cJSON.h"
 
-
 struct CCType CC_EvalType;
 
 
diff --git a/src/cryptoconditions/src/include/cJSON.c b/src/cryptoconditions/src/include/cJSON.c
index 5c99b8cb2..5a6c15058 100644
--- a/src/cryptoconditions/src/include/cJSON.c
+++ b/src/cryptoconditions/src/include/cJSON.c
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*
   Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
 
diff --git a/src/cryptoconditions/src/include/cJSON.h b/src/cryptoconditions/src/include/cJSON.h
index 547dddad5..b2fa212e9 100644
--- a/src/cryptoconditions/src/include/cJSON.h
+++ b/src/cryptoconditions/src/include/cJSON.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*
   Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
 
diff --git a/src/cryptoconditions/src/include/libbase58.h b/src/cryptoconditions/src/include/libbase58.h
index 78f1b4591..e5c4215ce 100644
--- a/src/cryptoconditions/src/include/libbase58.h
+++ b/src/cryptoconditions/src/include/libbase58.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/include/sha256.c b/src/cryptoconditions/src/include/sha256.c
index e273836ce..5e4079afe 100644
--- a/src/cryptoconditions/src/include/sha256.c
+++ b/src/cryptoconditions/src/include/sha256.c
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*-
  * Copyright 2005 Colin Percival
  * Copyright 2013 Christian Mehlis & René Kijewski
diff --git a/src/cryptoconditions/src/include/sha256.h b/src/cryptoconditions/src/include/sha256.h
index 7bbf3f43a..97a5a548e 100644
--- a/src/cryptoconditions/src/include/sha256.h
+++ b/src/cryptoconditions/src/include/sha256.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*-
  * Copyright 2005 Colin Percival
  * Copyright 2013 Christian Mehlis & René Kijewski
diff --git a/src/cryptoconditions/src/include/tweetnacl.c b/src/cryptoconditions/src/include/tweetnacl.c
index 8ac0a1806..2c23f2800 100644
--- a/src/cryptoconditions/src/include/tweetnacl.c
+++ b/src/cryptoconditions/src/include/tweetnacl.c
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 #include "tweetnacl.h"
 #define FOR(i,n) for (i = 0;i < n;++i)
 #define sv static void
diff --git a/src/cryptoconditions/src/include/tweetnacl.h b/src/cryptoconditions/src/include/tweetnacl.h
index 9277fbf8f..5aa5a830f 100644
--- a/src/cryptoconditions/src/include/tweetnacl.h
+++ b/src/cryptoconditions/src/include/tweetnacl.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 #ifndef TWEETNACL_H
 #define TWEETNACL_H
 #define crypto_auth_PRIMITIVE "hmacsha512256"
diff --git a/src/cryptoconditions/src/json_rpc.c b/src/cryptoconditions/src/json_rpc.c
index 0af0ba4f8..4b930db9e 100644
--- a/src/cryptoconditions/src/json_rpc.c
+++ b/src/cryptoconditions/src/json_rpc.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/prefix.c b/src/cryptoconditions/src/prefix.c
index c5ff5d7ba..f3eb14695 100644
--- a/src/cryptoconditions/src/prefix.c
+++ b/src/cryptoconditions/src/prefix.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/preimage.c b/src/cryptoconditions/src/preimage.c
index 10262e049..4032c57e5 100644
--- a/src/cryptoconditions/src/preimage.c
+++ b/src/cryptoconditions/src/preimage.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/secp256k1.c b/src/cryptoconditions/src/secp256k1.c
index 0185b4459..ebec5c1c5 100644
--- a/src/cryptoconditions/src/secp256k1.c
+++ b/src/cryptoconditions/src/secp256k1.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/threshold.c b/src/cryptoconditions/src/threshold.c
index de13565e1..2e20a6faf 100644
--- a/src/cryptoconditions/src/threshold.c
+++ b/src/cryptoconditions/src/threshold.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/utils.c b/src/cryptoconditions/src/utils.c
index 6d302d74d..62779ae7e 100644
--- a/src/cryptoconditions/src/utils.c
+++ b/src/cryptoconditions/src/utils.c
@@ -1,4 +1,6 @@
 // Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -19,14 +21,12 @@
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-
 #include "include/cJSON.h"
 #include "include/sha256.h"
 #include "asn/asn_application.h"
 #include "cryptoconditions.h"
 #include "internal.h"
 
-
 static unsigned char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
                                 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
                                 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',