From e79690ff8869747f99201291eb5962dfd93170c5 Mon Sep 17 00:00:00 2001 From: hidayethuda Date: Fri, 16 Oct 2026 18:10:51 +0300 Subject: [PATCH 1/2] Add com.quatvision.quatmark.1 (QuatMark keyed image watermark) New entry 55: QuatVision's QuatMark invisible image watermark, used as the soft binding that recovers the asset's C2PA Manifest when metadata is stripped. Submitted on behalf of QuatVision Yazilim Teknoloji A.S. Co-Authored-By: Claude Fable 5.1 --- softbinding-algorithm-list.json | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/softbinding-algorithm-list.json b/softbinding-algorithm-list.json index 43fbdd4..7aa9f01 100755 --- a/softbinding-algorithm-list.json +++ b/softbinding-algorithm-list.json @@ -863,5 +863,25 @@ "contact": "support@immostory.ai", "informationalUrl": "https://immostory.ai/en/provenance" } + }, + { + "identifier": 55, + "alg": "com.quatvision.quatmark.1", + "type": "watermark", + "decodedMediaTypes": [ + "image" + ], + "encodedMediaTypes": [ + "image/jpeg", + "image/png", + "image/tiff", + "image/webp" + ], + "entryMetadata": { + "description": "QuatMark keyed invisible image watermark. The watermark carries a compact record identifier bound to the asset's C2PA Manifest in the QuatMark manifest repository; QuatVision resolves the identifier back to the signed manifest when the manifest has been stripped from the file. Generator product on the C2PA Conforming Products List (Level 1, September 2026).", + "dateEntered": "2026-10-16T00:00:00.000Z", + "contact": "info@quatvision.ai", + "informationalUrl": "https://quatmark.com/en/products/c2pa-content-credentials" + } } ] From c774494e61b7f6ac486e591897c874a4b7b9b755 Mon Sep 17 00:00:00 2001 From: Dominique Guinard Date: Wed, 28 Oct 2026 11:14:29 +0100 Subject: [PATCH 2/2] Update softbinding-algorithm-list.json --- softbinding-algorithm-list.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/softbinding-algorithm-list.json b/softbinding-algorithm-list.json index 7aa9f01..8e3d9d5 100755 --- a/softbinding-algorithm-list.json +++ b/softbinding-algorithm-list.json @@ -865,7 +865,7 @@ } }, { - "identifier": 55, + "identifier": 56, "alg": "com.quatvision.quatmark.1", "type": "watermark", "decodedMediaTypes": [