Which entries describe more than one layer
Two entries describe two marking layers on the same file. One pairs a manifest with a visible notice, the other pairs it with an invisible signal, and in both cases the two layers fail under different handling. From 2 source pages, read 2026-09-22; no maker pays to be listed.
| Point | Where it sits | What the record holds |
|---|---|---|
| A manifest plus a visible notice | One entry | Metadata on all assets, and a moving mark on downloads |
| A manifest plus an embedded signal | One entry | Credentials from a version, and a signal on all videos |
| A single layer, or none | Fourteen entries | One mechanism at most, and usually only a priced notice |
Inclusion rule. Entries whose pages describe more than one mechanism applied to the same output. A capability offered as an option counts only where the page says it is applied. Order. Two-layer entries first, then the rest of the record.
1Two layers is a design answer to a real failure mode
A manifest carries structure and is dropped by any container rebuild. A signal inside the content carries almost nothing and survives exactly that. Neither is the durable mechanism; they are durable against different handling.
Applying both means a file that has been through a stripping pipeline still says something, and a file that arrives intact says a great deal. Nothing else in this record covers both cases.
2The two pairings answer different readers
One entry's second layer is a notice a viewer can see, which is the only arrangement in this record where the same page addresses both the provider duty and something a person will notice.
The other's second layer is an invisible signal, which addresses the same provider duty twice over and leaves a viewer with nothing. Both are coherent, and they are aimed at different problems.
3Fourteen entries describe one layer at most
Most describe a visible mark priced into a plan and nothing else. A few describe a signal and say nothing visible. That distribution is the shape of the record and it is worth stating without dressing it up.
A reader comparing tools should take the two-layer entries as the exception rather than as a standard the others fall short of. Nothing in the article asks for two layers, and no page here claims to be meeting a standard at all.
- Amazon Nova Reel (aws.amazon.com)An invisible watermark is applied to all videos it generates, and a detection solution can check whether one is presenta video generation model
- OpenAI SoraA visible moving watermark on videos downloaded from sora.com or the Sora appthe layer tied to the download route
- Amazon Nova ReelVersion 1.1 adds Content Credentials based on the C2PA specification, carrying the model and the platform usedthe second provenance layer
- OpenAI Sora (openai.com)C2PA metadata on all assets, listed as providing verifiable origin through an industry standardfirst item under provenance safety tooling
4A provider's own account
Against the duty in “Two layers at once”, SceneMixer's published pages describe what its pipeline produces:
Downloads and the asset library follow your Music switch; a shared link always plays the version with the episode’s music.
SceneMixer, Background Music in an AI Short Drama: The Built-in Score — “Does the music carry into downloads, the library and shared links?” (read 2026-10-13)
You can recomposite with different end-card text, and in step-by-step mode you can reshoot individual segments. The finished file can also be downloaded and shared with a link.
SceneMixer, How to Make an Ad from One Photo — “Can I change the ad after it is finished?” (read 2026-10-13)
5Sources
Article wording from AI Act Explorer, Article 50; vendor statements from the pages listed on each generator entry. Both read 2026-09-22. Related: Does anyone say why, A flag set in code, Scope you can use.