Como quiero agregar reclamos personalizados a mi aplicación, verifiqué el código fuente de ClaimTypes (descompilado con el descompilador JetBrains). Aquí hay una parte:

namespace System.Security.Claims
{
  /// <summary>Defines constants for the well-known claim types that can be assigned to a subject. This class cannot be inherited.</summary>
  [ComVisible(false)]
  public static class ClaimTypes
  {
    internal const string ClaimTypeNamespace = "http://schemas.microsoft.com/ws/2008/06/identity/claims";
    /// <summary>The URI for a claim that specifies the instant at which an entity was authenticated; http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationinstant.</summary>
    public const string AuthenticationInstant = "http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationinstant";
    /// <summary>The URI for a claim that specifies the method with which an entity was authenticated; http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationmethod.</summary>
    public const string AuthenticationMethod = "http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationmethod";
    /// <summary>The URI for a claim that specifies the cookie path; http://schemas.microsoft.com/ws/2008/06/identity/claims/cookiepath.</summary>
    public const string CookiePath = "http://schemas.microsoft.com/ws/2008/06/identity/claims/cookiepath";
    /// <summary>The URI for a claim that specifies the deny-only primary SID on an entity; http://schemas.microsoft.com/ws/2008/06/identity/claims/denyonlyprimarysid. A deny-only SID denies the specified entity to a securable object.</summary>
    public const string DenyOnlyPrimarySid = "http://schemas.microsoft.com/ws/2008/06/identity/claims/denyonlyprimarysid";
    /// <summary>The URI for a claim that specifies the deny-only primary group SID on an entity; http://schemas.microsoft.com/ws/2008/06/identity/claims/denyonlyprimarygroupsid. A deny-only SID denies the specified entity to a securable object.</summary>
    public const string DenyOnlyPrimaryGroupSid = "http://schemas.microsoft.com/ws/2008/06/identity/claims/denyonlyprimarygroupsid";

Mi pregunta es (y espero que no sea demasiado tonta), ¿para qué son las URL? ¿Se usan en otro lugar? Cuando intento abrir una URL, mi explorador dice que no se encontró el sitio. Así que creo que no hay un esquema xml o algo detrás. Si agrego mis reclamos personalizados, ¿tengo que agregar algo como esas URL también?