diff --git a/src/cryptoconditions/src/anon.c b/src/cryptoconditions/src/anon.c
index 6a4de4b0b..a1bd6b4a3 100644
--- a/src/cryptoconditions/src/anon.c
+++ b/src/cryptoconditions/src/anon.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/cryptoconditions.c b/src/cryptoconditions/src/cryptoconditions.c
index 303b9aa41..6642b0345 100644
--- a/src/cryptoconditions/src/cryptoconditions.c
+++ b/src/cryptoconditions/src/cryptoconditions.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/ed25519.c b/src/cryptoconditions/src/ed25519.c
index e4d090d1e..33b332071 100644
--- a/src/cryptoconditions/src/ed25519.c
+++ b/src/cryptoconditions/src/ed25519.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/eval.c b/src/cryptoconditions/src/eval.c
index a18d51202..a017d181d 100644
--- a/src/cryptoconditions/src/eval.c
+++ b/src/cryptoconditions/src/eval.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/internal.h b/src/cryptoconditions/src/internal.h
index 7cfcaa225..3d24214ce 100644
--- a/src/cryptoconditions/src/internal.h
+++ b/src/cryptoconditions/src/internal.h
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/json_rpc.c b/src/cryptoconditions/src/json_rpc.c
index 150bcb12b..c4fde8080 100644
--- a/src/cryptoconditions/src/json_rpc.c
+++ b/src/cryptoconditions/src/json_rpc.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/prefix.c b/src/cryptoconditions/src/prefix.c
index 67dc6f644..ea339df35 100644
--- a/src/cryptoconditions/src/prefix.c
+++ b/src/cryptoconditions/src/prefix.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/preimage.c b/src/cryptoconditions/src/preimage.c
index a45e621d4..2fee86b88 100644
--- a/src/cryptoconditions/src/preimage.c
+++ b/src/cryptoconditions/src/preimage.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/secp256k1.c b/src/cryptoconditions/src/secp256k1.c
index 44ff1f0e2..d5319d32b 100644
--- a/src/cryptoconditions/src/secp256k1.c
+++ b/src/cryptoconditions/src/secp256k1.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/threshold.c b/src/cryptoconditions/src/threshold.c
index e94666c3d..e8e12435e 100644
--- a/src/cryptoconditions/src/threshold.c
+++ b/src/cryptoconditions/src/threshold.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cryptoconditions/src/utils.c b/src/cryptoconditions/src/utils.c
index ebb2bd143..ac2256f18 100644
--- a/src/cryptoconditions/src/utils.c
+++ b/src/cryptoconditions/src/utils.c
@@ -1,3 +1,4 @@
+// Copyright (c) 2019-2020 The Hush developers
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -216,7 +217,7 @@ void hashFingerprintContents(asn_TYPE_descriptor_t *asnType, void *fp, uint8_t *
     ASN_STRUCT_FREE(*asnType, fp);
     if (rc.encoded < 1) {
         fprintf(stderr, "Encoding fingerprint failed\n");
-        return 0;
+        return;
     }
     sha256(buf, rc.encoded, out);
 }
@@ -299,5 +300,3 @@ int jsonGetHexOptional(const cJSON *params, char *key, char *err, unsigned char
     }
     return checkDecodeHex(item, key, err, data, size);
 }
-
-