diff --git a/vocab/vocabulary.yml b/vocab/vocabulary.yml
index 131101d2..03e11fb2 100644
--- a/vocab/vocabulary.yml
+++ b/vocab/vocabulary.yml
@@ -62,7 +62,11 @@ class:
     defined_by: https://www.w3.org/TR/cid-1.0/#jsonwebkey
     context: https://w3id.org/security/jwk/v1
 
-
+  - id: ResolutionError
+    label: DID Resolution error
+    defined_by: https://www.w3.org/TR/did-resolution#errors
+    context: none
+    
 property:
   - id: sec:controller
     label: Controller
@@ -95,7 +99,7 @@ property:
     label: Authentication method
     range: sec:VerificationMethod
     type: sec:VerificationRelationship
-    defined_by: [hhttps://www.w3.org/TR/cid-1.0/#authentication]
+    defined_by: [https://www.w3.org/TR/cid-1.0/#authentication]
     see_also:
       - label: DID 1.1 specification
         url: https://www.w3.org/TR/did-1.1/#core-properties
@@ -198,4 +202,66 @@ datatype:
     defined_by: https://www.w3.org/TR/cid-1.0/#multibase
     context: https://w3id.org/security/multikey/v1
 
+individual:
+  - id: INVALID_DID
+    label: Invalid DID
+    comment: The DID supplied to the DID resolution function does not conform to valid syntax.
+    defined_by: https://www.w3.org/TR/did-resolution#INVALID_DID
+    type: ResolutionError
+    context: vocab
+
+  - id: NOT_FOUND
+    label: Not Found
+    comment: The DID resolver was unable to find the DID document associated with the DID.
+    defined_by: https://www.w3.org/TR/did-resolution#NOT_FOUND
+    type: ResolutionError
+    context: vocab
+
+  - id: REPRESENTATION_NOT_SUPPORTED
+    label: Representation Not Supported
+    comment: The requested representation is not supported by the DID resolver.
+    defined_by: https://www.w3.org/TR/did-resolution#REPRESENTATION_NOT_SUPPORTED
+    type: ResolutionError
+    context: vocab
+
+  - id: METHOD_NOT_SUPPORTED
+    label: Method Not Supported
+    comment: The DID resolver does not support the DID method of the specified DID.
+    defined_by: https://www.w3.org/TR/did-resolution#METHOD_NOT_SUPPORTED
+    type: ResolutionError
+    context: vocab
+
+  - id: INTERNAL_ERROR
+    label: Internal Error
+    comment: The DID resolver encountered an internal error.
+    defined_by: https://www.w3.org/TR/did-resolution#INTERNAL_ERROR
+    type: ResolutionError
+    context: vocab
 
+  - id: INVALID_DID_DOCUMENT
+    label: Invalid DID Document
+    comment: The DID document was found but it is not a valid DID document.
+    defined_by: https://www.w3.org/TR/did-resolution#INVALID_DID_DOCUMENT
+    type: ResolutionError
+    context: vocab
+
+  - id: DEACTIVATED
+    label: Deactivated
+    comment: The DID has been deactivated and the DID document is no longer available.
+    defined_by: https://www.w3.org/TR/did-resolution#DEACTIVATED
+    type: ResolutionError
+    context: vocab
+
+  - id: INVALID_DID_URL
+    label: Invalid DID URL
+    comment: The DID URL supplied to the DID resolution function does not conform to valid syntax.
+    defined_by: https://www.w3.org/TR/did-resolution#INVALID_DID_URL
+    type: ResolutionError
+    context: vocab
+
+  - id: INVALID_OPTIONS
+    label: Invalid Options
+    comment: The options supplied to the DID resolution function are invalid.
+    defined_by: https://www.w3.org/TR/did-resolution#INVALID_OPTIONS
+    type: ResolutionError
+    context: vocab