@@ -111,7 +111,9 @@ The following identifier types are defined by GEDCOM X.
URI | description
+`http://gedcomx.org/Primary` | The primary identifier for the resource.
+`http://gedcomx.org/Deprecated` | An identifier that has been relegated, deprecated, or otherwise downgraded. This identifier is commonly used as the result of a merge when what was once a primary identifier for a person is no longer primary.
+`http://gedcomx.org/Persistent` | An identifier that is considered to be a long-term persistent identifier. Applications that provide persistent identifiers are claiming that links to the resource using the identifier won't break.