For makers of AI image, video and audio tools
California's Business and Professions Code section 22757.2 asks a provider of a generative AI system for a free disclosure verification tool. It also lets the provider direct users to a third-party tool instead. This page goes through the section clause by clause and says plainly what this checker does and does not do today.
What the checker is
A free page that reads a file in the visitor's browser. It looks for Content Credentials (C2PA) records in images, video and audio, and for AI declarations in image metadata. It reports what a file carries. It never says that a file is or is not AI-generated.
The section, clause by clause
(a)(1) Assess image, video and audio
The law asks for a tool that lets a user "assess whether" content was made or altered by your system. This checker reads C2PA records in images, video and audio (MP4, MOV, M4A, MP3 and WAV) and AI declarations in image metadata. It reports what a file says and whether a record validates. It does not say whether your system made a file.
(a)(2) Output "system provenance data"
The checker shows what it reads. For a C2PA record that is the signer, the tool named as the claim generator, the recorded actions and the validator's result. For image metadata it is the declarations, such as an IPTC digital source type. A file with none shows nothing found.
(a)(3) No "personal information"
The checker does not display the fields of a file that most often carry a person's name or contact details: an AI prompt writer's name, a credit line, a record's title, and a certificate's name when it looks like an email address, a phone number, a web address or a person's name. It says that something was hidden. It has no consent step, so it never shows them. It reads them in the browser so the checks stay accurate. Spotting a personal name is pattern-based, so a name that does not look like one can be missed. Other text in a file, such as keywords or the name of the software that wrote a record, is shown as written.
(a)(4) Free and "publicly accessible"
The checker is free and open to anyone. There is no account and no sign-in.
(a)(5) Upload content or a URL
A visitor can choose a file: an image up to 50 MB, or a video or audio file up to 100 MB. It is read in the browser and never uploaded to us. A URL cannot be entered, and we fetch nothing from other sites.
(a)(6) An "application programming interface"
There is none. The checker is a web page only.
(b) "User feedback"
Every result has a line, "Was this result wrong?", that opens an email to hello@newwatermark.com in the visitor's own mail program. The page sends nothing itself.
(c) and (d) Data collected and required
The page collects nothing from the file or the visitor: no upload, no analytics, no cookies and no browser storage. Like any website, our host, Cloudflare, sees ordinary request data such as an IP address (see Privacy and method). Using the checker requires no information from the visitor.
(e)(2) Compatible with your latent disclosures
The checker reads C2PA records and IPTC or XMP declarations. It does not read SynthID, Meta's watermark, Midjourney's or TikTok's marks, or any other proprietary mark. The one invisible watermark it checks is the pattern that Stable Diffusion's reference software adds. If your disclosure is anything else, this checker cannot see it. See How accurate is this checker? for what we tested.
If you want to point users here
A plain link is enough: https://newwatermark.com/. Nothing goes in the address. The page takes no file, setting or result from a link, and we do not need to know who links to us.
Section (e) sets three conditions for a third-party tool. It must itself meet the section, it must be compatible with the latent disclosures in content your system produces or alters, and it must be "clearly and conspicuously accessible" through your system's user interface. The link in your interface is yours to place. As the clauses above show, this checker has no URL input and no API, and we make no claim that it meets (a) or (e).
If you need URL input or an API, write to hello@newwatermark.com. Tell us what you make and what you need. Please do not attach files.
Limits of this page
This is information, not legal advice. Laws change, and we read this text on November 2, 2026. Read the statute itself and ask your own counsel whether a tool meets it. The checker is not for legal or evidentiary use.