diff --git a/crates/weaver_semconv/README.md b/crates/weaver_semconv/README.md
index 6a8f26ea..8c706c3f 100644
--- a/crates/weaver_semconv/README.md
+++ b/crates/weaver_semconv/README.md
@@ -9,3 +9,6 @@ methods to resolve references between different semconv catalogs.
 See [semantic convention YAML language](https://github.com/open-telemetry/build-tools/blob/main/semantic-conventions/syntax.md)
 for more details on the syntax.
 
+See [build-tools JSON schema](https://github.com/open-telemetry/build-tools/blob/main/semantic-conventions/semconv.schema.json) for
+formal definition of the allowed syntax.
+
diff --git a/crates/weaver_semconv/src/lib.rs b/crates/weaver_semconv/src/lib.rs
index d54e7b38..67380788 100644
--- a/crates/weaver_semconv/src/lib.rs
+++ b/crates/weaver_semconv/src/lib.rs
@@ -778,6 +778,7 @@ mod tests {
 
     /// Load multiple semantic convention files in the semantic convention registry.
     /// No error should be emitted.
+    /// Spot check one or two pieces of loaded data.
     #[test]
     fn test_load_catalog() {
         let yaml_files = vec![
@@ -813,6 +814,23 @@ mod tests {
             let result = catalog.load_from_file(yaml);
             assert!(result.is_ok(), "{:#?}", result.err().unwrap());
         }
+
+        // Now let's resolve attributes and check provenance and structure is what we expect.
+        let _ = catalog.resolve(ResolverConfig::with_keep_specs()).unwrap();
+        assert_eq!(catalog.attribute_with_provenance("server.address").unwrap().provenance, "data/server.yaml");
+        let server_address = catalog.attribute("server.address").unwrap();
+        assert_eq!(server_address.brief(), "Server address - domain name if available without reverse DNS lookup, otherwise IP address or Unix domain socket name.");
+        assert_eq!(server_address.is_required(), false);
+        assert_eq!(server_address.tag(), None);
+        if let AttributeSpec::Id {
+            r#type, ..
+        } = server_address {
+            assert_eq!(format!("{}", r#type), "string");
+        } else {
+            panic!("Expected real AttributeSpec, not reference");
+        }
+        // Assert that we read things correctly and keep provenance.
+        assert_eq!(catalog.metric_with_provenance("http.client.request.duration").unwrap().provenance, "data/http-metrics.yaml");
     }
 
     /// Test the resolver with a semantic convention semantic convention registry that contains