1 files changed, 12 insertions, 1 deletions

diff --git a/ext/atom.lv2/atom.ttl b/ext/atom.lv2/atom.ttl
index 186268c..7702d21 100644
--- a/ext/atom.lv2/atom.ttl
+++ b/ext/atom.lv2/atom.ttl
@@ -165,7 +165,7 @@ char     str[] = "<http://example.org/foo> a <http://example.org/Thing&
 
 atom:ID a rdfs:Class ;
 	rdfs:subClassOf atom:Atom ;
-	rdfs:label      "Integer ID mapped from a URI" ;
+	rdfs:label   "Integer ID mapped from a URI" ;
 	rdfs:comment """
 An unsigned 32-bit integer mapped from a URI using the
 <a href="http://lv2plug.in/ns/ext/uri-map">URI Map</a> extension's
@@ -174,6 +174,17 @@ with <code>map = NULL</code>.
 """ .
 
 
+atom:BlankID a rdfs:Class ;
+	rdfs:subClassOf atom:Atom ;
+	rdfs:label   "Integer ID for a blank node" ;
+	rdfs:comment """
+An unsigned 32-bit integer identifier for a blank node.  A BlankID is only
+meaningful within a limited scope (e.g. the Atom in which it appears), and
+MUST NOT be used as a global identifier.  In particular, a BlankID is NOT an
+ID, and can not be mapped to/from a URI.
+""" .
+
+
 atom:Vector a rdfs:Class ;
 	rdfs:subClassOf atom:Atom ;
 	rdfs:label      "Vector" ;