Initial doc for CAWG identity

Author: crandmck

docs/manifest/cawg-id.md

@@ -0,0 +1,102 @@
+---
+id: cawg-id
+title: CAWG identity assertions
+---
+
+The [Creator Assertions Working Group (CAWG)](https://cawg.io/) defines assertions that enable content creators to express individual and organizational intent about their content.
+The CAWG identity assertion enables a credential holder to prove control over a digital identity and to use that identity to document the content creator’s role(s) in a C2PA asset’s lifecycle.
+
+## Verified identities
+
+As defined in the [CAWG Identity Assertion technical specification](https://cawg.io/identity/1.1-draft/#_identity_claims_aggregation), 
+
+
+Content creators may wish to document their role in creating an asset using common identity signals such as:
+- Verified web sites
+- Social media accounts
+- Official ID documentation
+- Professional accreditations
+- Organizational affiliations
+
+To facilitate the use of such identity signals, the content creator may use the services of a trusted third-party intermediary known as a _identity claims aggregator_ to gather these signals and to restate them on their behalf.
+
+The identity claims aggregator performs two important roles:
+
+- It collects and verifies identity attestation claims from various identity providers such as social media sites and ID verification vendors.
+- When the content creator creates content, it creates a unique asset-specific credential binding the identity attestation claims collected earlier to the specific C2PA asset being described.
+
+An identity claims aggregation claim does not support a content creator using their own credential to directly issue their own signature for an identity assertion. 
+
+
+## Example
+
+```json
+"assertions": [
+  ...
+  {
+    "label": "cawg.identity",
+    "data": {
+      "@context": [
+        "https://www.w3.org/ns/credentials/v2",
+        "https://cawg.io/identity/1.1/ica/context/"
+      ],
+      "type": [
+        "VerifiableCredential",
+        "IdentityClaimsAggregationCredential"
+      ],
+      "issuer": "did:web:connected-identities.identity.adobe.com",
+      "validFrom": "2025-04-29T17:34:44Z",
+      "verifiedIdentities": [
+        {
+          "type": "cawg.social_media",
+          "username": "xyz",
+          "uri": "https://www.instagram.com/xyz",
+          "verifiedAt": "2024-10-08T18:04:08Z",
+          "provider": {
+            "id": "https://instagram.com",
+            "name": "instagram"
+          }
+        },
+        {
+          "type": "cawg.social_media",
+          "username": "xyz",
+          "uri": "https://www.behance.net/xyz",
+          "verifiedAt": "2024-10-22T19:31:17Z",
+          "provider": {
+            "id": "https://behance.net",
+            "name": "behance"
+          }
+        },
+        {
+          "type": "cawg.social_media",
+          "username": "J Smith",
+          "uri": "https://www.linkedin.com/in/xyz",
+          "verifiedAt": "2024-10-08T18:03:41Z",
+          "provider": {
+            "id": "https://linkedin.com",
+            "name": "linkedin"
+          }
+        },
+        {
+          "type": "cawg.social_media",
+          "username": "xyz",
+          "uri": "https://twitter.com/xyz",
+          "verifiedAt": "2024-10-08T18:03:49Z",
+          "provider": {
+            "id": "https://twitter.com",
+            "name": "twitter"
+          }
+        }
+      ],
+      "credentialSchema": [
+        {
+          "id": "https://cawg.io/identity/1.1/ica/schema/",
+          "type": "JSONSchema"
+        }
+      ]
+    }
+  }
+  ...
+]
+```
+

sidebars.js

@@ -45,6 +45,10 @@ const sidebars = {
           type: 'doc',
           id: 'manifest/manifest-validation',
         },
+        {
+          type: 'doc',
+          id: 'manifest/cawg-id',
+        },
         {
           type: 'doc',
           id: 'manifest/manifest-examples',