diff --git a/config/install/field.field.user.user.field_user_mathscinetid.yml b/config/install/field.field.user.user.field_user_mathscinetid.yml
new file mode 100644
index 0000000..51c433b
--- /dev/null
+++ b/config/install/field.field.user.user.field_user_mathscinetid.yml
@@ -0,0 +1,23 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.user.field_user_mathscinetid
+  module:
+    - user
+id: user.user.field_user_mathscinetid
+field_name: field_user_mathscinetid
+entity_type: user
+bundle: user
+label: 'MathSciNet ID'
+description: 'MathSciNet identifier of the researcher.'
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  min: null
+  max: null
+  prefix: ''
+  suffix: ''
+field_type: integer
diff --git a/config/install/field.storage.user.field_user_mathscinetid.yml b/config/install/field.storage.user.field_user_mathscinetid.yml
new file mode 100644
index 0000000..0bb2a34
--- /dev/null
+++ b/config/install/field.storage.user.field_user_mathscinetid.yml
@@ -0,0 +1,19 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - user
+id: user.field_user_mathscinetid
+field_name: field_user_mathscinetid
+entity_type: user
+type: integer
+settings:
+  unsigned: false
+  size: normal
+module: core
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/config/optional/field.field.user.user.field_person_id.yml b/config/optional/field.field.user.user.field_person_id.yml
index 71e57bd..b242c28 100644
--- a/config/optional/field.field.user.user.field_person_id.yml
+++ b/config/optional/field.field.user.user.field_person_id.yml
@@ -1,4 +1,3 @@
-uuid: 5c4edf33-dcb7-4a09-b34b-f11a682eacae
 langcode: en
 status: true
 dependencies:
diff --git a/config/optional/field.storage.user.field_person_id.yml b/config/optional/field.storage.user.field_person_id.yml
index 1817ca4..dafd336 100644
--- a/config/optional/field.storage.user.field_person_id.yml
+++ b/config/optional/field.storage.user.field_person_id.yml
@@ -1,4 +1,3 @@
-uuid: 5bc68841-a992-4744-8860-a2726d7de5b0
 langcode: en
 status: true
 dependencies:
diff --git a/site_users.install b/site_users.install
index 18e0a96..1ddcc79 100644
--- a/site_users.install
+++ b/site_users.install
@@ -508,6 +508,46 @@ function site_users_update_10007() {
   return t('field_user_id_lattes alterado para BIGINT para suportar IDs Lattes de 16 dígitos.');
 }
 
+/**
+ * Adds the field_user_mathscinetid field for researcher MathSciNet ID.
+ */
+function site_users_update_10008() {
+  // Create field storage if it does not exist.
+  if (!FieldStorageConfig::loadByName('user', 'field_user_mathscinetid')) {
+    FieldStorageConfig::create([
+      'field_name' => 'field_user_mathscinetid',
+      'entity_type' => 'user',
+      'type' => 'integer',
+      'settings' => [
+        'unsigned' => FALSE,
+        'size' => 'normal',
+      ],
+      'cardinality' => 1,
+      'translatable' => TRUE,
+    ])->save();
+  }
+
+  // Create field instance if it does not exist.
+  if (!FieldConfig::loadByName('user', 'user', 'field_user_mathscinetid')) {
+    FieldConfig::create([
+      'field_name' => 'field_user_mathscinetid',
+      'entity_type' => 'user',
+      'bundle' => 'user',
+      'label' => 'MathSciNet ID',
+      'description' => 'MathSciNet identifier of the researcher.',
+      'required' => FALSE,
+      'settings' => [
+        'min' => NULL,
+        'max' => NULL,
+        'prefix' => '',
+        'suffix' => '',
+      ],
+    ])->save();
+  }
+
+  return t('MathSciNet ID field created successfully.');
+}
+
 /**
  * Corrige mapeamentos LDAP com campos de string nulos na config ativa.
  */
diff --git a/translations/site_users.pt-br.po b/translations/site_users.pt-br.po
index 84c8b06..8dbb409 100644
--- a/translations/site_users.pt-br.po
+++ b/translations/site_users.pt-br.po
@@ -171,3 +171,14 @@ msgstr "Este usuário não tornou seu perfil público."
 # Template
 msgid "Phone:"
 msgstr "Telefone:"
+
+# Field labels - field_user_mathscinetid
+msgid "MathSciNet ID"
+msgstr "ID MathSciNet"
+
+msgid "MathSciNet identifier of the researcher."
+msgstr "Identificador MathSciNet do pesquisador."
+
+# Install/update - field_user_mathscinetid
+msgid "MathSciNet ID field created successfully."
+msgstr "Campo ID MathSciNet criado com sucesso."