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diff --git a/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_HashCodec.h b/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_HashCodec.h
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+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file ccnxCodecSchemaV1_HashCodec.h
+ * @brief A cryptographic hash digest encoded
+ *
+ */
+
+#ifndef __CCNx_Common__ccnxCodecSchemaV1_HashCodec__
+#define __CCNx_Common__ccnxCodecSchemaV1_HashCodec__
+
+#include <ccnx/common/codec/ccnxCodec_TlvEncoder.h>
+#include <ccnx/common/codec/ccnxCodec_TlvDecoder.h>
+
+#include <parc/security/parc_CryptoHash.h>
+
+/**
+ * Encodes the hash, but without a "TL" container
+ *
+ * Will append the Link in it's well-known TLV format, but without any
+ * "TL" container.
+ *
+ * If the link does not have a name, will return -1 with the error TLV_MISSING_MANDATORY.
+ *
+ * @param [in] encoder The hash will be appended to the encoder
+ * @param [in] hash The hash to append
+ *
+ * @retval non-negative The number of bytes appended to the encoder
+ * @retval negative An error, look at the CCNxCodecError of the encoder
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+ssize_t ccnxCodecSchemaV1HashCodec_Encode(CCNxCodecTlvEncoder *encoder, const PARCCryptoHash *hash);
+
+/**
+ * The decoder points to the first byte of the "value" of something that is a Link
+ *
+ * For a KeyName, decoder should be pointed to the "value" of the KeyName.  for a ContentObject
+ * of type Link, it should be the first byte of the Payload.
+ *
+ * A link is the tuple {Name, [KeyId], [Hash]}, where KeyId is the keyIdRestriction and
+ * Hash is the ContentObjectHash restriction to use in an Interest for Name.
+ * No additional fields are allowed in the Link.
+ *
+ * @param [in] decoder The Tlv Decoder pointing to the start of the Name value
+ * @param [in] length the length of the Hash value
+ *
+ * @return non-null A parsed name
+ * @return null An error, check the decoder's error message
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+PARCCryptoHash *ccnxCodecSchemaV1HashCodec_DecodeValue(CCNxCodecTlvDecoder *decoder, size_t length);
+
+#endif // __CCNx_Common__ccnxCodecSchemaV1_HashCodec__