GateTrue

What each generator documents about marking its output

Amazon Nova Reel fills this column twice over

Amazon Nova Reel names two mechanisms: an invisible watermark on all videos, and Content Credentials on version 1.1 built on C2PA and carrying the model and platform that produced the file. As of 2026-09-22.

Detail and durability, on opposite layers of one fileThe manifest around the picture carries the model and the platform and can be inspected with publicly available tools, and the vendor says a check works unless the metadata has been removed. The signal inside the picture survives more and says less, with no public reader described.The manifestThe in-picture signalWhere it livesAttached around the pictureInside the picture itselfWhat it carriesThe model and the platform usedExistence, checked by a detectionsolutionWho can read itAnyone, with publicly available toolsNot described as publicly readableThe vendor's caveatA check works unless metadata was removedNo durability limit publishedWhy the two mechanisms are recorded as separate facts
Fig. 1 The layer that tells a reader the most is the layer the vendor says can be removed by ordinary handling.
One cell of the register, and what it rests on. Read from the vendor's AI service card on 2026-09-22.
The readingWhat it holds
The recorded valueInvisible watermark plus C2PA Content Credentials
The vendor's own wordsAn invisible watermark on all videos, plus Content Credentials on 1.1 built on C2PA.
How the reading was takenRead from a service card naming both mechanisms, with the inspection route and the caveat from the user guide.

Inclusion rule. One row for the value, one for the sentence or absence behind it, one for the method. Nothing here is drawn from output, support replies or coverage by anyone else. Order. Fixed order: the value, then its evidence, then the method.

A standard named, with a public reader: the generators whose machine-readable marking answer takes the same form. Recorded 2026-09-22.
GeneratorMachine-readable marking
Amazon Nova ReelInvisible watermark plus C2PA Content Credentials
VeoSynthID, with a verification platform named

Inclusion rule. Generators that name a provenance scheme and also name a route by which somebody outside the vendor can read it in a file. Order. Alphabetical by generator name.

1Two layers, and what each one carries

The invisible watermark is a signal in the picture, applied to everything the model generates, with a detection solution that can check for its existence. The Content Credentials are a manifest around the picture, built on a named standard, and they carry specifics: the model and the platform used to generate the video.

That second detail is unusual. Most of this column is occupied by the name of a scheme; here the card says what the manifest contains. A reader inspecting such a file learns not only that it was generated but by which model on which platform, which is the difference between a flag and a provenance record.

2A public inspection route, named as such

The card says Content Credentials can be inspected by dropping a generated video into publicly available tools such as Verify. Publicly available is the phrase that matters: the party holding the file can check it without asking the vendor for anything.

Compare the other generator in this register that names a standard. Its detection tooling is described as internal, so the same kind of claim about the file comes with no way for a recipient to act on it. Two filled cells, and only one of them is useful to somebody who did not generate the file.

3The caveat is the sentence to carry away

The user guide adds that such a check should indicate the file was generated unless the metadata has been removed. That is a vendor stating the limit of its own mechanism, in writing, and no other vendor in this register does it. A manifest lives outside the picture, and ordinary handling can take it off.

Read across the two layers, the caveat also shows why they are recorded as separate facts. The fragile layer is the one that carries the detail; the robust one is the invisible signal, whose detection solution is not described as publicly available. Durability and readability sit on opposite layers here.

4Sources

  • Machine-readable marking
    Amazon Nova Reel 1.1 adds Content Credentials to videos it generates, built on the C2PA specification, carrying the model and the platform used to generate the videostandard namedAWS, Amazon Nova Reel service card / recorded 2026-09-22
  • Detection
    Content Credentials can be inspected by dropping a generated video into publicly available tools such as Verifya public routeAWS, Amazon Nova Reel service card / recorded 2026-09-22

The value above is read from docs.aws.amazon.com, the vendor's AI service card, on 2026-09-22. The whole row for this generator is on its own page, and the rule for what this column may hold is on the machine-readable marking column page. Neighbouring readings: SceneMixer, file contents, Wan, file contents.