diff --git a/softbinding-algorithm-list.json b/softbinding-algorithm-list.json
index ecdd55e..59d6bed 100755
--- a/softbinding-algorithm-list.json
+++ b/softbinding-algorithm-list.json
@@ -601,5 +601,22 @@
             "contact": "c2pa@evixar.com",
             "informationalUrl": "https://www.evixar.com/en/technology/efp/"
         }
+    },
+    {
+        "identifier": 40,
+        "alg": "me.deepmark.audio.vigil.128",
+        "type": "watermark",
+        "decodedMediaTypes": [
+            "audio"
+        ],
+        "entryMetadata": {
+            "description": "Vigil is a 128-bit-per-second neural audio watermarking algorithm developed by DeepMark Inc. Real-time capable on both CPU and GPU. Embedding can be performed by the demo DeepMark ingestion API at https://ingestion-api.deepmark.me. NOTE: This is a demo/playground deployment that signs manifests with test certificates, so manifest signatures will not validate against any trust authority.",
+            "dateEntered": "2026-06-05T00:00:00Z",
+            "contact": "hello@deepmark.me",
+            "informationalUrl": "https://www.deepmark.me"
+        },
+        "softBindingResolutionApis": [
+            "https://resolution-api.deepmark.me"
+        ]
     }
 ]