diff --git a/modules/json_form_widget/css/style.css b/modules/json_form_widget/css/style.css
new file mode 100644
index 0000000000..0b4100578c
--- /dev/null
+++ b/modules/json_form_widget/css/style.css
@@ -0,0 +1,10 @@
+/* Target any fieldset with the error class */
+fieldset.error {
+  border-width: var(--input--error-border-size) !important;
+  border-color: var(--input--error-border-color) !important;
+}
+
+/* Target any fieldset legend when it has an error */
+fieldset.error > legend > span.fieldset__label {
+  color: var(--input--error-color) !important;
+}
diff --git a/modules/json_form_widget/json_form_widget.libraries.yml b/modules/json_form_widget/json_form_widget.libraries.yml
new file mode 100644
index 0000000000..491d7bdb5a
--- /dev/null
+++ b/modules/json_form_widget/json_form_widget.libraries.yml
@@ -0,0 +1,4 @@
+style:
+  css:
+    theme:
+      css/style.css: {}
diff --git a/modules/json_form_widget/json_form_widget.module b/modules/json_form_widget/json_form_widget.module
index e7edcef7cb..ed46853a60 100644
--- a/modules/json_form_widget/json_form_widget.module
+++ b/modules/json_form_widget/json_form_widget.module
@@ -36,9 +36,19 @@ function json_form_widget_form_alter(&$form, FormStateInterface $form_state, $fo
   }
   if ($form_state->get('has_json_form_widget')) {
     $form['actions']['submit']['#submit'][] = [UploadOrLink::class, 'submit'];
+
+    // Add a validation handler.
+    $form['#validate'][] = '_json_form_widget_post_constraint_validation';
   }
 }
 
+/**
+ * Validation handler.
+ */
+function _json_form_widget_post_constraint_validation(array &$form, FormStateInterface $form_state) {
+  \Drupal::service('json_form.form_post_validate')->onPostConstraintValidate($form, $form_state);
+}
+
 /**
  * Implements hook_entity_delete().
  *
diff --git a/modules/json_form_widget/json_form_widget.services.yml b/modules/json_form_widget/json_form_widget.services.yml
index 3371a02aae..cf5506bc58 100644
--- a/modules/json_form_widget/json_form_widget.services.yml
+++ b/modules/json_form_widget/json_form_widget.services.yml
@@ -42,3 +42,5 @@ services:
     parent: logger.channel_base
     arguments: 
       - 'json_form_widget'
+  json_form.form_post_validate:
+    class: \Drupal\json_form_widget\FormPostValidate
diff --git a/modules/json_form_widget/src/FormPostValidate.php b/modules/json_form_widget/src/FormPostValidate.php
new file mode 100644
index 0000000000..d406d6afe2
--- /dev/null
+++ b/modules/json_form_widget/src/FormPostValidate.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Drupal\json_form_widget;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Component\Utility\NestedArray;
+
+/**
+ * Post validation.
+ */
+class FormPostValidate {
+
+  /**
+   * Handles the post-constraint validation event.
+   *
+   * @param array $form
+   *   The form array.
+   * @param \Drupal\core\Form\FormStateInterface $form_state
+   *   The form state.
+   */
+  public function onPostConstraintValidate(array &$form, FormStateInterface $form_state) {
+    if (empty($errors = $form_state->getErrors())) {
+      return;
+    }
+
+    $form_state->clearErrors();
+
+    $form['#attached']['library'][] = 'json_form_widget/style';
+
+    foreach ($errors as $error) {
+      $message = $error->__toString();
+      $field_name_json = $error->getArguments()['json_field_pointer'];
+      $field_name = json_decode($field_name_json, TRUE);
+
+      $full_path = ['field_json_metadata', 'widget', 0, 'value'];
+      $full_path = array_merge($full_path, $field_name);
+
+      $element = &NestedArray::getValue($form, $full_path, $key_exists);
+
+      if ($key_exists && is_array($element)) {
+        $form_state->setError($element, $message);
+      }
+    }
+  }
+
+}
\ No newline at end of file
diff --git a/modules/json_form_widget/src/Plugin/Field/FieldWidget/JsonFormWidgetBase.php b/modules/json_form_widget/src/Plugin/Field/FieldWidget/JsonFormWidgetBase.php
index 0e255e44b3..12706e7353 100644
--- a/modules/json_form_widget/src/Plugin/Field/FieldWidget/JsonFormWidgetBase.php
+++ b/modules/json_form_widget/src/Plugin/Field/FieldWidget/JsonFormWidgetBase.php
@@ -103,10 +103,41 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
     // Attempt to build the form.
     $json_form = $this->builder->getJsonForm($default_data, $form_state);
     if ($json_form) {
-      return ['value' => $json_form];
+    // Add entity_builders callback - runs AFTER entity validation
+      //$element['#element_validate'][] = [$this, 'lateValidationHandler'];
+      $element['value'] = $json_form;
+    return $element;
     }
   }
 
+/**
+ * Late validation handler.
+ */
+public static function lateValidationHandler(array &$form, FormStateInterface $form_state) {
+  if ($form_state->hasAnyErrors()) {
+    return;
+  }
+  
+  // Get the entity being validated
+  $form_object = $form_state->getFormObject();
+  if (method_exists($form_object, 'getEntity')) {
+    $entity = $form_object->getEntity();
+    
+    // Manually validate the entity constraints
+    $violations = $entity->validate();
+    
+    // If there are violations, process them with your service
+    if (count($violations) > 0) {
+      $field_name = $form_state->get('json_form_widget_field');
+      $element = $form[$field_name]['widget'][0] ?? null;
+      
+      if ($element) {
+        \Drupal::service('json_form.form_post_validate')->onPostConstraintValidate($element, $form, $form_state);
+      }
+    }
+  }
+}
+
   /**
    * {@inheritdoc}
    */
diff --git a/modules/metastore/src/Plugin/Validation/Constraint/ProperJsonValidator.php b/modules/metastore/src/Plugin/Validation/Constraint/ProperJsonValidator.php
index e1abc8c699..fb806a7b22 100644
--- a/modules/metastore/src/Plugin/Validation/Constraint/ProperJsonValidator.php
+++ b/modules/metastore/src/Plugin/Validation/Constraint/ProperJsonValidator.php
@@ -107,7 +107,7 @@ private function doValidate(string $schema_id, $item): array {
       $this->validMetadataFactory->get($item->value, $schema_id);
     }
     catch (ValidationException $e) {
-      $errors = $this->getValidationErrorsMessages($e->getResult()->getErrors());
+      $errors = $e->getResult()->getErrors();
     }
     catch (InvalidArgumentException $e) {
       $errors[] = $e->getMessage();
@@ -116,31 +116,86 @@ private function doValidate(string $schema_id, $item): array {
   }
 
   /**
-   * Presents errors.
-   *
-   * @param array $errors
-   *   Validation errors array.
-   *
-   * @return array
-   *   Presented errors array.
+   * Add Violations with field context.
    */
-  private function getValidationErrorsMessages(array $errors): array {
-    $presented = $this->presenter->present(...$errors);
-    return array_map(
-      function ($presented_error) {
-        return $presented_error->message();
-      },
-      $presented
-    );
+  private function addViolations($errors) {
+    foreach ($errors as $error) {
+      // Extract field information from error pointer
+      $field_name = $this->extractFieldFromPointer($error);
+      $message = is_array($error) ? $error['message'] : $this->presenter->present($error)[0]->message();
+      
+      // Add violation with field context
+      $violation = $this->context->buildViolation($message);
+      
+      // Store field information in the violation for later use
+      if ($field_name) {
+        $violation->setParameter('json_field_pointer', json_encode($field_name));
+      }
+      
+      $violation->addViolation();
+    }
   }
 
   /**
-   * Add Violations.
+   * Extract field name from JSON Schema error pointer.
    */
-  private function addViolations($errors) {
-    foreach ($errors as $error) {
-      $this->context->addViolation($error);
+  private function extractFieldFromPointer($error) {
+    if (!is_object($error)) {
+      return null;
+    }
+    
+    // Handle required field errors - field name is in keywordArgs['missing']
+    if (method_exists($error, 'keywordArgs')) {
+      $keywordArgs = $error->keywordArgs();
+      if (isset($keywordArgs['missing'])) {
+        return [$keywordArgs['missing']];
+      }
+    }
+    
+    // Handle other validation errors - field name is in dataPointer
+    if (method_exists($error, 'dataPointer')) {
+      $pointer = $error->dataPointer();
+      if (is_array($pointer) && !empty($pointer)) {
+        // If dataPointer contains just one index, return it as an array
+        if (count($pointer) === 1) {
+          return $pointer;
+        }
+        
+        // For array fields with multiple indices, we need to add the field name both before and after numeric indices
+        $processed_pointer = [];
+        
+        foreach ($pointer as $index => $part) {
+          // If this is the first part and it's a field name, add it twice
+          if ($index === 0 && !is_numeric($part)) {
+            $processed_pointer[] = $part; // First occurrence
+            $processed_pointer[] = $part; // Second occurrence for array structure
+          }
+          // If this is a numeric index, add it and then add the field name after
+          elseif (is_numeric($part)) {
+            $processed_pointer[] = $part;
+            // Find the field name (first non-numeric part)
+            $field_name = null;
+            foreach ($pointer as $p) {
+              if (!is_numeric($p)) {
+                $field_name = $p;
+                break;
+              }
+            }
+            if ($field_name) {
+              $processed_pointer[] = $field_name;
+            }
+          }
+          // For other parts (like 'privateEmail'), just add them
+          else {
+            $processed_pointer[] = $part;
+          }
+        }
+        
+        return $processed_pointer;
+      }
     }
+    
+    return null;
   }
 
 }
diff --git a/schema/collections/dataset.json b/schema/collections/dataset.json
index e740307be1..ac2a0149eb 100644
--- a/schema/collections/dataset.json
+++ b/schema/collections/dataset.json
@@ -9,7 +9,8 @@
     "identifier",
     "accessLevel",
     "modified",
-    "keyword"
+    "keyword",
+    "creators"
   ],
   "properties": {
     "@type": {
@@ -22,7 +23,80 @@
       "title": "Title",
       "description": "Human-readable name of the asset. Should be in plain English and include sufficient detail to facilitate search and discovery.",
       "type": "string",
-      "minLength": 1
+      "minLength": 10
+    },
+    "number": {
+      "title": "Number",
+      "description": "Human-readable name of the asset. Should be in plain English and include sufficient detail to facilitate search and discovery.",
+      "type": "integer",
+      "minimum": 10
+    },
+    "creators": {
+      "title": "Author Information",
+      "type": "array",
+      "items": {
+        "title": "Author",
+        "type": "object",
+        "properties": {
+          "givenName": {
+            "title": "First Name",
+            "type": "string"
+          },
+          "middleName": {
+            "title": "Middle Name",
+            "type": "string"
+          },
+          "familyName": {
+            "title": "Last Name",
+            "type": "string"
+          },
+          "privateEmail": {
+            "title": "Email",
+            "format": "email",
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "required": [
+          "givenName",
+          "familyName",
+          "privateEmail"
+        ]
+      },
+      "minItems": 2
+    },
+    "creators-not-required": {
+      "title": "Author Information NOT",
+      "type": "array",
+      "items": {
+        "title": "Author",
+        "type": "object",
+        "properties": {
+          "givenName": {
+            "title": "First Name",
+            "type": "string"
+          },
+          "middleName": {
+            "title": "Middle Name",
+            "type": "string"
+          },
+          "familyName": {
+            "title": "Last Name",
+            "type": "string"
+          },
+          "privateEmail": {
+            "title": "Email",
+            "format": "email",
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "required": [
+          "givenName",
+          "familyName",
+          "privateEmail"
+        ]
+      }
     },
     "identifier": {
       "title": "Unique Identifier",