diff --git a/pauthabielf64/pauthabielf64.rst b/pauthabielf64/pauthabielf64.rst
index 938b829..5254847 100644
--- a/pauthabielf64/pauthabielf64.rst
+++ b/pauthabielf64/pauthabielf64.rst
@@ -933,8 +933,12 @@ compatibility.
 
 * The absence of any ELF marking means no information on how pointers
   are signed is available for this ELF file. When used in combination
-  with ELF files that contain ELF marking, then the file is assigned
-  the (``platform identifer``, ``version number``) of (0,0).
+  with ELF files that contain ELF marking, then by default the file is
+  assigned the (``platform identifer``, ``version number``) of (0,0).
+  Implementations may use additional information supplementary to the
+  ELF file, such as linker command-line options, to provide an
+  implementation defined `Core Information`_ for ELF files with no ELF
+  marking.
 
 * The presence of ELF marking means that, if the file contains
   pointers, they were signed in a compatible way with the schema
@@ -966,7 +970,7 @@ compatibility.
     Information`_ is not recognized by the loader.
 
   * If the platform identifier from the `Core Information`_ is the
-    reservd Invalid value 0.
+    reserved Invalid value 0.
 
 Platforms may replace the base compatibility model with a
 platform-specific model.