diff --git a/evolution/did_manager.py b/evolution/did_manager.py
new file mode 100644
index 00000000..b4586d2a
--- /dev/null
+++ b/evolution/did_manager.py
@@ -0,0 +1,48 @@
+"""Phase 23: Sovereign Identity & Decentralized Identifiers (DIDs).
+
+Manages Timmy's decentralized identity across various DID methods (e.g., did:key, did:web, did:ion).
+"""
+
+import logging
+import json
+from typing import List, Dict, Any
+from agent.gemini_adapter import GeminiAdapter
+
+logger = logging.getLogger(__name__)
+
+class DIDManager:
+    def __init__(self):
+        self.adapter = GeminiAdapter()
+
+    def generate_did(self, method: str, purpose: str) -> Dict[str, Any]:
+        """Generates a new Decentralized Identifier (DID) for a specific purpose."""
+        logger.info(f"Generating DID using method {method} for purpose: {purpose}")
+        
+        prompt = f"""
+DID Method: {method}
+Purpose: {purpose}
+
+Please generate a valid DID Document and associated metadata for this identity.
+Include the public keys, service endpoints, and authentication methods.
+Identify the 'Sovereign Identity Principles' implemented in this DID.
+
+Format the output as JSON:
+{{
+  "did": "did:{method}:...",
+  "did_document": {{...}},
+  "purpose": "{purpose}",
+  "method": "{method}",
+  "sovereign_principles": [...],
+  "security_recommendations": "..."
+}}
+"""
+        result = self.adapter.generate(
+            model="gemini-3.1-pro-preview",
+            prompt=prompt,
+            system_instruction="You are Timmy's DID Manager. Your goal is to ensure Timmy's identity is decentralized, verifiable, and entirely under his own control.",
+            thinking=True,
+            response_mime_type="application/json"
+        )
+        
+        did_data = json.loads(result["text"])
+        return did_data