GateTrue

What each generator documents about marking its output

An exhaustive reference and a card, on file contents

Both entries are read from technical documents. One enumerates every request and response field and names no provenance field at all. The other names an invisible watermark and a credential standard. As of 2026-09-22.

Two technical documents, filling different halves of the rowOne document specifies the visible stamp down to the corner and the switch that controls it, and names nothing inside the file. The other names two mechanisms inside the file, one of them checkable with public tools, and describes nothing on the frame and no control.The interface referenceThe service cardThe frameThe words, and the corner they sit inNothing publishedThe controlA boolean field, default falseNothing publishedThe fileNo field listed anywhereAn invisible mark plus named credentialsThe limitNone publishedA check fails if metadata was removedNo entry in this register fills all four columns
Fig. 1 Between them all four columns are filled. Neither entry fills more than two, which is the register's ordinary shape.
The two entries on one question at a time, in each vendor's own terms. Recorded 2026-09-22.
On this questionWanAmazon Nova Reel
Document readAn API reference and a console guideA service card and a user guide
File contentsNothing listed among the fieldsAn invisible watermark plus credentials
Visible markText and corner both publishedNothing published
ControlA boolean in the request, default falseNothing published
Durability caveatNoneA check works unless metadata was removed

Inclusion rule. One row per question on which these two entries can be compared from their own published pages. Questions neither vendor addresses are left out rather than filled with a dash. Order. Fixed order: the mechanism first, then who holds it, then what it leaves behind.

Where each value above was read, and what the register records in the machine-readable marking column. Recorded 2026-09-22.
GeneratorMachine-readable markingDocument read
Amazon Nova ReelInvisible watermark plus C2PA Content CredentialsAI service card
WanNot documentedvideo generation guide

Inclusion rule. The two entries on this page, with the value each one's own pages support in the column they diverge on. Order. Alphabetical by generator name.

1A silence that means more than usual

Nine rows in the file-contents column are empty because a pricing grid had no reason to discuss the inside of a file. One of these two entries is empty for a stronger reason: the document is an interface reference whose purpose is to enumerate what a caller sends and what comes back, and no provenance field appears in it.

The other entry is the counter-example that makes the point. It is also a technical document, and it names an invisible watermark applied to all output and, on the later model version, Content Credentials built on a named standard and carrying the model and platform used. Same genre, opposite cells.

2Each one is unusually precise about the column the other leaves empty

The reference publishes the text of its visible stamp and the corner it occupies, which is the most detailed visible-mark statement in the register, and a boolean field with a published default for switching it. The card publishes nothing about the frame at all and nothing about control.

So between them the two entries fill all four columns and neither fills more than two. A reader who wants a product that documents both the frame and the file is choosing from an empty set across the whole register, which is the more useful finding than either row alone.

3What an integrator can promise on each

On the reference-read entry the entire published answer to whether output can be identified as generated is to set the stamp field to true. Nothing invisible is described, no standard is named, and the console route stamps unconditionally, which the vendor attributes to compliance requirements.

On the card-read entry the answer exists whether or not the caller does anything, and one of the two layers can be checked with publicly available tools. The same vendor also publishes the limit of that mechanism, which no other vendor here does.

4Sources

  • Machine-readable marking
    Not documented on the vendor's public pages (as of 2026-09-22)not listed among the parameters or the responseModel Studio, text-to-video API reference / recorded 2026-09-22
  • 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

Both values above are read from the vendor pages linked in the rows: alibabacloud.com and docs.aws.amazon.com, on 2026-09-22. Each entry has its own page, Wan and Amazon Nova Reel, and the rule for the column they diverge on is on the machine-readable marking column page. Other pairs: trial output, two shapes, a reason, or no route.