diff --git a/src/main/resources/json-schema/annotation.json b/src/main/resources/json-schema/annotation.json
index 7da9098..7ff7059 100644
--- a/src/main/resources/json-schema/annotation.json
+++ b/src/main/resources/json-schema/annotation.json
@@ -200,7 +200,7 @@
   "required": [
     "@id",
     "@type",
-    "ods:ID",
+    "dcterms:identifier",
     "rdf:type",
     "ods:version",
     "oa:motivation",
diff --git a/src/main/resources/json-schema/digital-media.json b/src/main/resources/json-schema/digital-media.json
index ff996bc..4d1280b 100644
--- a/src/main/resources/json-schema/digital-media.json
+++ b/src/main/resources/json-schema/digital-media.json
@@ -227,14 +227,6 @@
         "https://creativecommons.org/licenses/by-nc-sa/4.0/"
       ]
     },
-    "xmpRights:Owner": {
-      "type": "string",
-      "description": "A list of legal owners of the resource",
-      "examples": [
-        "Unknown",
-        "Naturalis Biodiversity Center"
-      ]
-    },
     "dcterms:available": {
       "type": "string",
       "description": "Date (often a range) that the resource became or will become available",
diff --git a/src/main/resources/json-schema/digital-specimen.json b/src/main/resources/json-schema/digital-specimen.json
index 32e1c16..50e6a90 100644
--- a/src/main/resources/json-schema/digital-specimen.json
+++ b/src/main/resources/json-schema/digital-specimen.json
@@ -140,7 +140,8 @@
           "eng",
           "fra",
           "deu"
-        ], [
+        ],
+        [
           "dut"
         ]
       ]
@@ -465,6 +466,14 @@
         "$ref": "https://schemas.dissco.tech/schemas/fdo-type/digital-specimen/0.4.0/event.json"
       }
     },
+    "ods:hasChronometricAges": {
+      "type": "array",
+      "description": "Contains information about the chronometric age of the specimen part",
+      "items": {
+        "type": "object",
+        "$ref": "https://schemas.dissco.tech/schemas/fdo-type/digital-specimen/0.4.0/chronometric-age.json"
+      }
+    },
     "ods:hasTombstoneMetadata": {
       "type": "object",
       "description": "Object containing the tombstone metadata of the object. Only present when ods:status is ods:Tombstone",
diff --git a/src/main/resources/json-schema/machine-annotation-service.json b/src/main/resources/json-schema/machine-annotation-service.json
index d66dad3..44a675f 100644
--- a/src/main/resources/json-schema/machine-annotation-service.json
+++ b/src/main/resources/json-schema/machine-annotation-service.json
@@ -115,7 +115,7 @@
             "Other Geodiversity",
             "Unclassified"
           ],
-          "$['ods:hasEvent'][*]['ods:Location']['dwc:locality']": [
+          "$['ods:hasEvents'][*]['ods:hasLocation']['dwc:locality']": [
             "*"
           ]
         }