diff --git a/.spellcheckerdict.txt b/.spellcheckerdict.txt
index ec34aeab..9e00df04 100644
--- a/.spellcheckerdict.txt
+++ b/.spellcheckerdict.txt
@@ -1,8 +1,9 @@
 Alexa
 announcementType
 Avro
+base32
 Base58
-BLAKE2b
+BLAKE3
 Brötli
 CalVer
 CC0
@@ -10,6 +11,7 @@ Changelog
 changeType
 (cid|CID)s?
 [Cc]odec('s)?
+contentAddress
 contentHash
 cryptographic
 cryptographically
@@ -19,7 +21,7 @@ CtxSharedSecretBob
 Curve25519
 decrypt(ed)?
 Delegator
-Deserialize
+[Dd]eserialize(d)?
 Diffie-Hellman
 discoverability
 [Dd]iscoverable
@@ -56,7 +58,7 @@ mdBook
 MDX
 MP[34]
 MSA
-multibase
+[Mm]ultibase
 multicodec
 [Mm]ultihash
 multihash-encoded
@@ -71,6 +73,8 @@ PNG
 Polkadot
 Poly1305
 pre-configured
+Prepending
+Prerelease
 PRId([ABs])?
 ProfileResource
 [Pp]ublicKey
@@ -110,6 +114,6 @@ W3C
 WebM
 WebP
 websocket
-whitepaper
+[Ww]hitepaper
 X25519
 XSalsa20
diff --git a/pages/ActivityContent/Associated/Attachments.md b/pages/ActivityContent/Associated/Attachments.md
index 5f2d76aa..39118ca9 100644
--- a/pages/ActivityContent/Associated/Attachments.md
+++ b/pages/ActivityContent/Associated/Attachments.md
@@ -44,7 +44,7 @@
           "href": "https://upload.wikimedia.org/wikipedia/commons/d/d9/Wilhelm_Scream.ogg",
           "mediaType": "audio/ogg",
           "hash": [
-		    "QmQrGdv6Ky5sJhaVdw27y4aod5pdfihDkBTxiBkRaSGJJ7"
+            "bdyqbcji3okmzxobvaqgduz5prixmumyndzopyufultmslndi4pdebii"
           ]
         }
       ],
@@ -73,7 +73,7 @@
 | `type` | [Activity Vocabulary 2.0](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-type) | YES | Identifies the type of the object | MUST be set to `Link` |
 | `href` | [Activity Vocabulary 2.0](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-href) | YES | The URL for the given image | MUST be a [Supported URL Schema](../Overview.md#supported-url-schema) |
 | `mediaType` | [Activity Vocabulary 2.0](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-mediatype) | YES | MIME type of `href` content | |
-| `hash` | [DSNP 1.0](Hash.md) | YES | Array of hashes for linked content validation | MUST include at least one [supported hash](Hash.md#supported-algorithms) |
+| `hash` | [DSNP 1.0](Hash.md) | YES | Array of hashes for linked content validation | MUST include at least one [supported hash](../../DSNP/Identifiers.md#supported-hashing-algorithms) |
 | `height` | [Activity Vocabulary 2.0](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-height) | no | A hint as to the rendering height in device-independent pixels |  |
 | `width` | [Activity Vocabulary 2.0](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-width) | no | A hint as to the rendering width in device-independent pixels |  |
 
@@ -106,7 +106,8 @@
           "height": 228,
           "mediaType": "image/jpg",
           "hash": [
-            "2Drjgb5yoVWTpubcWmDBLJqkxrFkZamekzJoYLSWwM2ezpFkab"
+            "bciqjiqcidmzuqpvrl5cocu3l4z2uhj22xqruht3d5kx7qijvfbnjlda",
+            "bdyqbjzt5drgji5w7xhsddsynusgx2vdmakcsrr4sfin5fyfkwlpup6q"
           ]
         }
       ]
@@ -169,7 +170,7 @@
           "height": 2250,
           "mediaType": "video/webm",
           "hash": [
-            "2Drjgb4a8eC4XheBKCBcbAcaVdEWcKjMbCSZ2L2c9CQs4x98jf"
+            "bdyqed7dnok3batd7tr64trqmovfxam5tqsgxkiv2op5765pq43swtui"
           ]
         }
       ]
diff --git a/pages/ActivityContent/Associated/Hash.md b/pages/ActivityContent/Associated/Hash.md
index 69c6886f..d87336f6 100644
--- a/pages/ActivityContent/Associated/Hash.md
+++ b/pages/ActivityContent/Associated/Hash.md
@@ -3,27 +3,18 @@
 *NOT* part of the Activity Streams 2.0 Vocabulary.
 
 Activity objects linking to external content such as audio, image or video files must include a `"hash"` field for users to validate linked content.
-The value of this `"hash"` field must be an array of strings, each representing a hash output using a specific algorithm.
-AT LEAST ONE hash in the array MUST be one of the [supported algorithms](#supported-algorithms), although others may also be used.
-
-Hashes MUST be encoded using the [multihash](https://github.com/multiformats/multihash) specification, and serialized as a [multibase](https://github.com/multiformats/multibase) string.
-
-### Supported Algorithms
-
-| Algorithm | Multihash Name | Leading bytes (as [varint](https://github.com/multiformats/unsigned-varint)) | Reference | DSNP Version Added |
-| --- | --- | --- | --- | --- |
-| SHA-256 | `sha2-256` | `0x1220` | [RFC 6234](https://tools.ietf.org/html/rfc6234) | 1.2.0 |
-| BLAKE2b | `blake2b-256` | `0xa0e40220` | [RFC 7693](https://tools.ietf.org/html/rfc7693) | 1.2.0 |
+The value of this `"hash"` field must be an array of strings.
+Each item in the array MUST be a valid [DSNP Content Hash](../../DSNP/Identifiers.md#dsnp-content-hash) for the content associated with the hash.
 
 ### Example
 
-This example gives SHA-256 and BLAKE2b hashes for the [PDF version of the DSNP whitepaper](https://github.com/LibertyDSNP/papers/raw/main/whitepaper/dsnp_whitepaper.pdf).
+This example gives SHA-256 and BLAKE3 hashes for the [PDF version of the DSNP whitepaper](https://github.com/LibertyDSNP/papers/raw/main/whitepaper/dsnp_whitepaper.pdf).
 
 ```json
 {
   "hash": [
-    "QmQNHNfHnbgJJ6nK4UPx2VtTUCafAKCbqZJ6ZRYUGjoeFj",
-    "2DrjgbGgSsXRhTiBWckoVwBFC6H4qiBWWNumSsRwdUt82YnTdN"
+    "bciqdnu347gcfmxzbkhgoubiobphm6readngitfywktdtbdocgogop2q",
+    "bdyqhwoxp2mc6oyaqpqyd2fvaxralslk32ggazv6nxpp342iec6652tq"
   ]
 }
 ```
diff --git a/pages/ActivityContent/Overview.md b/pages/ActivityContent/Overview.md
index 0b9d73f2..564f3472 100644
--- a/pages/ActivityContent/Overview.md
+++ b/pages/ActivityContent/Overview.md
@@ -1,5 +1,5 @@
 # Activity Content Specification
-__Version 1.2.0__
+__Version pre-1.3.0__
 
 Content references shared via the DSNP consist of URLs pointing to documents containing Activity Streams JSON objects.
 For the purposes of the DSNP, restrictions are placed on the [Activity Streams 2.0](https://www.w3.org/TR/activitystreams-core/) specification.
@@ -45,9 +45,10 @@ URLs in DSNP-compatible Activity Content MUST use one of the following URL schem
 | [LibertyDSNP/activity-content-java](https://github.com/LibertyDSNP/activity-content-java) | Java/Kotlin |
 | [LibertyDSNP/activity-content-swift](https://github.com/LibertyDSNP/activity-content-swift) | Swift |
 
-<!--- Uncomment for pre-release changes and prefix the version with `pre-[next version]`
+<!--- Uncomment for pre-release changes and prefix the version with `pre-[next version]` --->
 ## Prerelease Changelog
---->
+
+- DIP-273 Content Addressing
 
 ## Releases
 
diff --git a/pages/ActivityContent/Types/Profile.md b/pages/ActivityContent/Types/Profile.md
index ad2c3dc8..e9a5225f 100644
--- a/pages/ActivityContent/Types/Profile.md
+++ b/pages/ActivityContent/Types/Profile.md
@@ -27,22 +27,22 @@ Profiles are used to provide additional user information display.
   "icon": [
     {
       "type": "Link",
-      "href": "https://placekitten.com/256/256",
+      "href": "https://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/1-month-old_kittens_32.jpg/256px-1-month-old_kittens_32.jpg",
       "mediaType": "image/jpeg",
       "width": "256",
-      "height": "256",
+      "height": "171",
       "hash": [
-        "QmVmUqGYtHcVgpTFR64bHNcLGGFEeWxmUP6pV2C2RbWpKT"
+        "bdyqphnphmjdoumkxqbsuspribxvlsx2hx6525u3fh2dkr5bxnqritzi"
       ]
     },
     {
       "type": "Link",
-      "href": "https://placekitten.com/64/64",
+      "href": "https://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/1-month-old_kittens_32.jpg/64px-1-month-old_kittens_32.jpg",
       "mediaType": "image/jpeg",
       "width": "64",
-      "height": "64",
+      "height": "43",
       "hash": [
-        "QmcAh1rov5GcddekCffGeRnaSyiji6ATmfGWpxXYJHgJZx"
+        "bdyqktr7p5hc27bx4ernmngs6tj7uyukfb4atrtq44mdmx4yntuh2s5y"
       ]
     }
   ],
diff --git a/pages/DSNP/Announcements.md b/pages/DSNP/Announcements.md
index 8ba5fb8c..a45157d5 100644
--- a/pages/DSNP/Announcements.md
+++ b/pages/DSNP/Announcements.md
@@ -34,8 +34,12 @@ Implementations MUST provide a way to validate that the [identifier](Identifiers
 ## External Content URLs and Hashes
 
 Where Announcements refer to external documents (such as Activity Content documents), these are referenced by both a URL and a [DSNP Content Hash](Identifiers.md#dsnp-content-hash).
-The content hash MUST be generated by applying a [Supported Hashing Algorithm](Identifiers.md#supported-hashing-algorithms) to the full, unaltered contents retrieved from the URL.
-When readers retrieve content referenced in an Announcement, they can validate the authenticity of the content by regenerating the hash output and comparing it with the content hash recorded in the Announcement.
+The content hash MUST be generated by applying a [Supported Hashing Algorithm](Identifiers.md#supported-hashing-algorithms) to the full, unaltered contents of the document.
+
+The URL associated with a content hash should be construed as a hint to initially locate a document matching the content hash, but is in no way meant to be the only way to locate the indicated document.
+Over time, a URL may cease to reference the specified document, or might have its contents altered; therefore, the content hash should be considered the authoritative value and the URL only one of many possible ways of locating a document.
+For example, services may cache documents or retrieve them from a content-addressed file system by applying the content hash (or a value derived from the content hash, such as a CID).
+When readers retrieve content referenced in an Announcement, they can validate the authenticity of the content, regardless of where it is hosted, by regenerating the hash output and comparing it with the content hash recorded in the Announcement.
 
 ## Duplicate Handling
 
diff --git a/pages/DSNP/BatchPublications.md b/pages/DSNP/BatchPublications.md
index 3a3608ef..69d461bb 100644
--- a/pages/DSNP/BatchPublications.md
+++ b/pages/DSNP/BatchPublications.md
@@ -43,13 +43,13 @@ See also [Announcement Types](Announcements.md).
 
 #### Columns with Bloom Filters
 
-| Column | Parquet Type |
-| ------ | ---- |
-| contentHash | `BYTE_ARRAY` |
-| emoji | `BYTE_ARRAY` |
-| fromId | `BYTE_ARRAY` |
-| inReplyTo | `BYTE_ARRAY` |
-| objectId | `BYTE_ARRAY` |
+| Column | Primitive Type | Logical Type | Converted Type (deprecated) |
+| ------ | ---- | ---- | --- |
+| contentHash | `BYTE_ARRAY` | `STRING` | `UTF8` |
+| emoji | `BYTE_ARRAY` | `STRING` | `UTF8` |
+| fromId | `INT64` | `INT(64, false)` | `UINT_64` |
+| inReplyTo | `BYTE_ARRAY` | `STRING` | `UTF8` |
+| targetContentHash | `BYTE_ARRAY` | `STRING` | `UTF8` |
 
 ## Non-Normative
 
diff --git a/pages/DSNP/Identifiers.md b/pages/DSNP/Identifiers.md
index 2020e237..02ea457a 100644
--- a/pages/DSNP/Identifiers.md
+++ b/pages/DSNP/Identifiers.md
@@ -11,15 +11,28 @@ Graph connections are formed through the DSNP User Id.
 
 ## DSNP Content Hash
 
-- Variable length byte array (fixed length for a given hashing algorithm)
-- MUST be a valid [multihash](https://github.com/multiformats/multihash) encoding of the hash output for the bytes of the content, generated with a [Supported Hashing Algorithm](Announcements.md#supported-hashing-algorithms)
+- MUST be a multibase string using the `base32` encoding
+- MUST represent a valid [multihash](https://github.com/multiformats/multihash) encoding of the hashing algorithm output for the bytes of the content
+- MUST use a [Supported Hashing Algorithm](Announcements.md#supported-hashing-algorithms)
+
+### Serialization Steps
+
+1. Apply the Supported Hashing Algorithm to create a digest of the content.
+2. Prepend the leading bytes from the table below indicating the hashing algorithm in the multicodec table and the length of the hash output.
+3. Serialize as a [base32 multibase](./Serializations.md#base32-multibase) string.
+
+### Example
+
+1. Applying the BLAKE3 algorithm to the [DSNP Whitepaper](https://dsnp.org/dsnp_whitepaper.pdf) yields the following 32 bytes: `0x3a0393e3ee6c6fec1b13885763225fd0927884b2d431ed262899523ade281cb4`.
+2. Prepending the multihash indicator (`0x1e` for `blake3`) and hash length (`0x20` for 32 bytes) gives `0x1e203a0393e3ee6c6fec1b13885763225fd0927884b2d431ed262899523ade281cb4`.
+3. Serializing as a base32 multibase string gives us the final DSNP Content Hash of `bdyqdua4t4pxgy37mdmjyqv3dejp5betyqsznimpneyujsur23yubzna`.
 
 ### Supported Hashing Algorithms
 
-| Algorithm | Multihash Name | Leading bytes (as [varint](https://github.com/multiformats/unsigned-varint)) | Reference | DSNP Version Added |
+| Algorithm | Multihash Name | Leading bytes | Reference | DSNP Version Added |
 | --- | --- | --- | --- | --- |
-| SHA-256 | `sha2-256` | `0x1220` | [RFC 6234](https://tools.ietf.org/html/rfc6234) | 1.2.0 |
-| BLAKE2b | `blake2b-256` | `0xa0e40220` | [RFC 7693](https://tools.ietf.org/html/rfc7693) | 1.2.0 |
+| SHA-256 | `sha2-256` | `0x1220` | [RFC 6234](https://tools.ietf.org/html/rfc6234) | 1.2 |
+| BLAKE3 | `blake3` | `0x1e20` | [blake3.io](https://blake3.io) | 1.3 |
 
 ## DSNP Protocol Scheme
 
@@ -46,32 +59,15 @@ The DSNP Content URI consists of three parts: the scheme, the user id, and the c
 It is used to uniquely identify an Announcement from a given user with content.
 
 Any [Announcement Types](Announcements.md#announcement-types) with a `fromId` and `contentHash` have a DSNP Content URI.
+When encoding a DSNP Content URI, the `contentHash` field MUST be serialized exactly as it appears in the Announcement (that is, as a base32 multihash string).
 
 ### Example
 ```
-dsnp://78187493520/QmQNHNfHnbgJJ6nK4UPx2VtTUCafAKCbqZJ6ZRYUGjoeFj
+dsnp://78187493520/bdyqdua4t4pxgy37mdmjyqv3dejp5betyqsznimpneyujsur23yubzna
 ```
 
 | part | value |
 | ---- | ----- |
 | Scheme | `dsnp://` |
 | User Id | `78187493520` |
-| Content Hash | `QmQNHNfHnbgJJ6nK4UPx2VtTUCafAKCbqZJ6ZRYUGjoeFj` |
-
-## DSNP CID
-
-A DSNP CID is a valid  [Content IDentifier](https://github.com/multiformats/cid) generated using the following parameters.
-
-### Supported CID Parameters
-
-The CID specification allows CIDs to be generated with a wide and ever-growing range of possible hashing algorithms, string encodings, and block sizes.
-In order for DSNP applications to interoperate, the required functionality is limited as follows:
-
-- CID version: MUST be version 1, in order to distinguish CIDs from simple multihash values in situations where either may be used
-- Hash algorithm: MUST be `sha2-256` or `blake2b-256`
-- Encoding: MUST be `base58btc` or `base32`
-- Codec: MUST be `dag-pb` for data 256*1024 bytes or longer; `raw` for data less than 256*1024 bytes
-- Chunking: Non-leaf nodes MUST be 256*1024 bytes
-
-The rationale for these options is to allow consuming applications to attempt to generate a matching CID from a byte stream for validation purposes without the need to reprocess the stream.
-These options are intentionally aligned to interoperate with the default output of the [Kubo](https://github.com/ipfs/kubo) IPFS command line utility when invoked as `ipfs add --cid-version=1 ...`.
+| Content Hash | `bdyqdua4t4pxgy37mdmjyqv3dejp5betyqsznimpneyujsur23yubzna` |
diff --git a/pages/DSNP/Overview.md b/pages/DSNP/Overview.md
index 8b3ee813..9c72a340 100644
--- a/pages/DSNP/Overview.md
+++ b/pages/DSNP/Overview.md
@@ -1,5 +1,5 @@
 # DSNP Specification
-__Version 1.2.0__
+__Version pre-1.3.0__
 
 DSNP (Decentralized Social Networking Protocol) is a social networking protocol designed to run on a blockchain.
 It specifies a set of social primitives along with requirements for interoperability.
@@ -29,9 +29,12 @@ Compliant DSNP system specifications MUST document how each of the required DSNP
 
 A compliant specification MUST specify a mapping from its system-specific state change data (for example, the events emitted by a blockchain) to the DSNP State Change Records that data represents.
 
-<!--- Uncomment for pre-release changes and prefix the version with `pre-[next version]`
+<!--- Uncomment for pre-release changes and prefix the version with `pre-[next version]` --->
 ## Prerelease Changelog
---->
+
+- DIP-263 User Data for Public Keys
+- DIP-267 User Data for Profile Resources
+- DIP-273 Content Addressing
 
 ## Releases
 
diff --git a/pages/DSNP/Serializations.md b/pages/DSNP/Serializations.md
index c2a81cc1..b92e3d30 100644
--- a/pages/DSNP/Serializations.md
+++ b/pages/DSNP/Serializations.md
@@ -14,24 +14,25 @@ Strings are used to avoid issues with different implementations of numbers.
 
 | Invalid | Why | Valid |
 | --- | --- | --- |
-| `0x123` | Must be decimal | `"291"` |
-| 291 | Must be a string | `"291"` |
-| `291n` | `BigInt(291)` serialization appends an `n`  | `"291"` |
+| `"0x123"` | Must be decimal | `"291"` |
+| `291` | Must be a string | `"291"` |
+| `"291n"` | `BigInt(291)` serialization appends an `n`  | `"291"` |
 
-## hexadecimal
+## base32 multibase
 
 Used to represent bytes.
+A base32 multibase string is self-identifying and always begins with the `b` character.
+The [Multibase Table](https://github.com/multiformats/multibase?tab=readme-ov-file#multibase-table) describes this encoding as "RFC4648 case-insensitive - no padding".
 
-- MUST use 0-9 and a-f representation
+- MUST use [RFC4648](https://datatracker.ietf.org/doc/html/rfc4648) §6 alphabet `abcdefghijklmnopqrstuvwxyz234567`
 - MUST be lowercase
-- MUST be prefixed with a `0x`
+- MUST be prefixed with `b`
 - MUST NOT have spaces or separators
-- MUST have two characters per byte in addition to the `0x` characters
+- MUST NOT end with or contain padding characters (`=`)
 
-| Bytes | Invalid | Valid |
+| Invalid | Why | Valid |
 | --- | --- | --- |
-| 2 | `0x123` | `0x0123` |
-| 2 | `123h` | `0x0123` |
-| 2 | `0x0ABC` | `0x0abc` |
-| 8 | `0xabc` | `0x0000000000000abc` |
-| 32 | `0x3e34c4325f4461b9355027b314f3eb56d31af549f7da7bd9ef1ce951651e` | `0x00003e34c4325f4461b9355027b314f3eb56d31af549f7da7bd9ef1ce951651e` |
+| `BDYQDUA4T` | Must user lowercase | `bdyqdua4t` |
+| `dyqdua4t` | Missing `b` prefix | `bdyqdua4t` |
+| `b3og3k0sj` | Wrong alphabet (`base32hex` was used) | `bdyqdua4t` |
+| `bdyqdua4t=` | Must not have padding characters | `bdyqdua4t` |
diff --git a/pages/DSNP/Types/Broadcast.md b/pages/DSNP/Types/Broadcast.md
index 2a5d19c1..b58ff9dd 100644
--- a/pages/DSNP/Types/Broadcast.md
+++ b/pages/DSNP/Types/Broadcast.md
@@ -7,7 +7,7 @@ A Broadcast Announcement is a way to send a public message to everyone.
 | Field | Description | Data Type | Serialization | Parquet Type | Bloom Filter |
 | ----- | ----------- | --------- | ------------- | ------------ | ------------ |
 | announcementType | Announcement Type Enum (`2`) | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
-| contentHash | multihash-encoded hash of content stored at URL | variable length byte array | [hexadecimal](../Serializations.md#hexadecimal) | `BYTE_ARRAY` | YES
+| contentHash | [DSNP Content Hash](../Identifiers.md#dsnp-content-hash) of content | UTF-8 | [base32 multibase](../Serializations.md#base32-multibase) | `UTF8` | YES
 | fromId | id of the user creating the Announcement | 64-bit unsigned integer | [decimal](../Serializations.md#decimal) | `UINT_64` | YES
 | url | content URL | UTF-8 | [UTF-8](https://datatracker.ietf.org/doc/html/rfc3629) | `UTF8` | no
 
@@ -19,7 +19,7 @@ A Broadcast Announcement is a way to send a public message to everyone.
 
 ### contentHash
 
-- MUST be a [DSNP Content Hash](../Identifiers.md#dsnp-content-hash)
+- MUST be a valid [DSNP Content Hash](../Identifiers.md#dsnp-content-hash)
 
 ### fromId
 
diff --git a/pages/DSNP/Types/ProfileResource.md b/pages/DSNP/Types/ProfileResource.md
index b8419653..c3732350 100644
--- a/pages/DSNP/Types/ProfileResource.md
+++ b/pages/DSNP/Types/ProfileResource.md
@@ -19,14 +19,9 @@ ProfileResource object serialization MUST conform to the following [Avro](https:
             "doc": "Type of resource"
         },
         {
-            "name": "cid",
+            "name": "contentAddress",
             "type": "string",
-            "doc": "Content IDentifier of resource"
-        },
-        {
-            "name": "length",
-            "type": "int",
-            "doc": "Length of document in bytes"
+            "doc": "Content address for the resource"
         }
     ]
 }
@@ -40,17 +35,15 @@ ProfileResource object serialization MUST conform to the following [Avro](https:
 
 #### Supported Profile-Linked Resource Types
 
-| Value | Description | Specification | Content Type | DSNP Version Added |
-| --- | --- | --- | --- |
-| 1 | Activity Content Profile with DSNP extensions | [DSNP Profile](../../ActivityContent/Types/Profile.md) | `application/json` | 1.3 |
-
-All other document type values are reserved for future expansion.
+| Value | Description | Specification | Content Type | Maximum File Size | Content Address Type | DSNP Version Added |
+| --- | --- | --- | --- | --- | --- | --- |
+| 1 | Activity Content Profile with DSNP extensions | [DSNP Profile](../../ActivityContent/Types/Profile.md) | `application/json` | 256 Kb | Supported [IPFS CID](https://docs.ipfs.tech/concepts/content-addressing/)<sup>1</sup> | 1.3 |
 
-### cid
+All other resource type values are reserved for future expansion.
 
-- MUST be a valid [DSNP CID](../Identifiers.md#dsnp-cid]
+<sup>1</sup>Supported IPFS CIDs must be CID version 1, using either `sha2-256` or `blake3` hashes with the `raw` codec and the `base32` serialization.
 
-### length
+### contentAddress
 
-- MUST be a positive integer
-- MUST match the length in bytes of the document
+- MUST be a valid content address for the specified `type` (see table above)
+- MUST contain sufficient information for an application to perform content integrity validation, for example by comparing the `contentAddress` field to the address derived by recalculating the content address from the bytes of the retrieved resource
diff --git a/pages/DSNP/Types/Reply.md b/pages/DSNP/Types/Reply.md
index 739da11f..b0aa44ba 100644
--- a/pages/DSNP/Types/Reply.md
+++ b/pages/DSNP/Types/Reply.md
@@ -8,7 +8,7 @@ but includes an `inReplyTo` field for noting it as a reply to a given [DSNP Cont
 | Field | Description | Data Type | Serialization | Parquet Type | Bloom Filter |
 | ----- | ----------- | --------- | ------------- | ------------ | ------------ |
 | announcementType | Announcement Type Enum (`3`) | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
-| contentHash | multihash-encoded hash of content stored at URL | variable length byte array | [hexadecimal](../Serializations.md#hexadecimal) | `BYTE_ARRAY` | YES
+| contentHash | [DSNP Content Hash](../Identifiers.md#dsnp-content-hash) of content | UTF-8 | [base32 multibase](../Serializations.md#base32-multibase) | `UTF8` | YES
 | fromId | id of the user creating the Announcement | 64-bit unsigned integer | [decimal](../Serializations.md#decimal) | `UINT_64` | YES
 | inReplyTo | Target [DSNP Content URI](../Identifiers.md#dsnp-content-uri) | UTF-8 | [UTF-8](https://datatracker.ietf.org/doc/html/rfc3629) | `UTF8` | YES
 | url | content URL | UTF-8 | [UTF-8](https://datatracker.ietf.org/doc/html/rfc3629) | `UTF8` | no
@@ -21,7 +21,7 @@ but includes an `inReplyTo` field for noting it as a reply to a given [DSNP Cont
 
 ### contentHash
 
-- MUST be a [DSNP Content Hash](../Identifiers.md#dsnp-content-hash)
+- MUST be a valid [DSNP Content Hash](../Identifiers.md#dsnp-content-hash)
 
 ### fromId
 
diff --git a/pages/DSNP/Types/Tombstone.md b/pages/DSNP/Types/Tombstone.md
index de8187f9..d09cd0dc 100644
--- a/pages/DSNP/Types/Tombstone.md
+++ b/pages/DSNP/Types/Tombstone.md
@@ -10,7 +10,7 @@ It is NOT possible to revert a tombstone.
 | announcementType | Announcement Type Enum (`0`) | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
 | fromId | Id of the user creating the Announcement and the Tombstoned Announcement | 64-bit unsigned integer | [decimal](../Serializations.md#decimal) | `UINT_64` | YES
 | targetAnnouncementType | target tombstoned Announcement type | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
-| targetContentHash | target `contentHash` of the original Announcement to tombstone | variable length byte array | [hexadecimal](../Serializations.md#hexadecimal) | `BYTE_ARRAY` | YES
+| targetContentHash | target `contentHash` of the original Announcement to tombstone | UTF-8 | [base32 multibase](../Serializations.md#base32-multibase) | `UTF8` | YES
 
 ## Field Requirements
 
@@ -37,4 +37,4 @@ It is NOT possible to revert a tombstone.
 
 ### targetContentHash
 
-- MUST match a `contentHash` of previous Announcement with the same `fromId` as the Tombstone Announcement
+- MUST be the `contentHash` of a previous Announcement of an Allowed Announcement Type with the same `fromId` as the Tombstone Announcement
diff --git a/pages/DSNP/Types/Update.md b/pages/DSNP/Types/Update.md
index 1cfac528..cbbd7215 100644
--- a/pages/DSNP/Types/Update.md
+++ b/pages/DSNP/Types/Update.md
@@ -10,10 +10,10 @@ Updates should be ignored.
 | ----- | ----------- | --------- | ------------- | ------------ | ------------ |
 | announcementType | Announcement Type Enum (`6`) | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
 | fromId | id of the user creating the announcement | 64 bit unsigned integer | [decimal](../Serializations.md#decimal) | `UINT_64` | YES
-| contentHash | multihash-encoded hash of content stored at URL | variable length byte array | [hexadecimal](../Serializations.md#hexadecimal) | `BYTE_ARRAY` | YES
+| contentHash | [DSNP Content Hash](../Identifiers.md#dsnp-content-hash) of content | UTF-8 | [base32 multibase](../Serializations.md#base32-multibase) | `UTF8` | YES
 | url | updated content URL | UTF-8 | [UTF-8](https://datatracker.ietf.org/doc/html/rfc3629) | `UTF8` | no
 | targetAnnouncementType | target updated Announcement type | enum | [decimal](../Serializations.md#decimal) | `INT32` | no |
-| targetContentHash | multihash-encoded hash of target content | variable length byte array | [hexadecimal](../Serializations.md#hexadecimal) | `BYTE_ARRAY` | YES
+| targetContentHash | target `contentHash` of the original Announcement to update | UTF-8 | [base32 multibase](../Serializations.md#base32-multibase) | `UTF8` | YES
 
 ## Field Requirements
 
@@ -27,7 +27,7 @@ Updates should be ignored.
 
 ### contentHash
 
-- MUST be a [DSNP Content Hash](../Identifiers.md#dsnp-content-hash) 
+- MUST be a valid [DSNP Content Hash](../Identifiers.md#dsnp-content-hash) 
 
 ### url
 
@@ -49,4 +49,4 @@ Updates should be ignored.
 
 ### targetContentHash
 
-- MUST be the `contentHash` of an allowed Announcement type with the same `fromId` as the Update Announcement
+- MUST be the `contentHash` of a previous Announcement of an Allowed Announcement Type with the same `fromId` as the Update Announcement
diff --git a/pages/index.md b/pages/index.md
index f12377fd..16fac045 100644
--- a/pages/index.md
+++ b/pages/index.md
@@ -15,8 +15,8 @@ There are three core specifications currently.
 
 | Name | Version | Description |
 | --- | --- | --- |
-| [DSNP](DSNP/Overview.md) | 1.2.0 | The system-agnostic DSNP specification |
-| [Activity Content](ActivityContent/Overview.md) | 1.2.0 | A specification for DSNP-referenced content (subset of W3C Activity Streams) |
+| [DSNP](DSNP/Overview.md) | pre-1.3.0 | The system-agnostic DSNP specification |
+| [Activity Content](ActivityContent/Overview.md) | pre-1.3.0 | A specification for DSNP-referenced content (subset of W3C Activity Streams) |
 | [DSNP Over Frequency](Frequency/Overview.md) | - | DSNP Over Frequency specification |
 
 Each specification is divided into several modules.