Privacy Policy
Last updated: 30 July 2026
This policy covers the chapter browser extension and the service it talks to at api.dativ.us. It describes what the extension sends, why each thing is needed, and what it deliberately does not do.
Throughout, "we" means Dativus LLC, 1533 18th St, Santa Monica, CA 90404, contactable at contact@chapter.dativ.us.
The short version
The extension needs an account, so we hold your email address. To draw markers on a video it has to ask our service about that specific video, so we learn which videos you open on the pages the extension runs on. We do not use advertising or analytics services, we do not build profiles for advertising, and we do not sell or rent your data to anyone.
What we collect
Account information
- Email address, and a password if you create an account with one. Passwords are hashed by our authentication layer and are never stored in a form we can read or recover.
- Google account email, if you choose "Continue with Google". The sign-in is brokered by our service; Google returns your email address and a confirmation that the sign-in succeeded.
- Subscription status ("entitlements") - whether your account may currently receive chapter data.
We use this to sign you in, to keep you signed in, to tell you when something about your account needs attention (email verification, password resets, a delivery failure to your address), and to decide whether to serve chapter data.
Video identifiers
When you open a supported video page, the extension sends our service the identifier of that video, taken from the page URL, in order to receive its chapter markers. That request is authenticated, so it is associated with your account.
This means we can tell which supported videos you have opened. We use it to serve markers, to keep the service running, and in aggregate to decide which events to process next. We do not use it for advertising and we do not combine it with data from other sources.
The extension only runs on the Paramount+ pages named in its manifest. It cannot see, and never receives, your browsing on any other site.
Missing-video reports
If a supported video has no chapter data, the extension offers a button to report it. Pressing it sends the video identifier, the page URL, the series name, the episode title, the video's duration, and the extension's version number. Those last four come from the page's own public metadata. The report is attributed to your account so we can avoid counting the same person twice, and so we can tell you when it has been processed.
Nothing is sent unless you press the button.
What we do not collect
- No advertising identifiers, and no third-party analytics, tracking, or advertising services of any kind. The extension contacts exactly two hosts:
api.dativ.us, and Google's sign-in pages if you choose that option. - No payment card details. If and when the service takes payment, it is handled by a payment provider and card numbers never reach us.
- No video, audio, screen contents, or keystrokes.
- No contents of any page outside the supported Paramount+ paths.
What is stored on your own device
These stay in your browser and are never transmitted:
- A session token, in extension storage, so you stay signed in between browser restarts. Signing out deletes it.
- Your display preferences - chapter view on or off, the history stack lock, native seek-bar markers - in the page's local storage.
Uninstalling the extension deletes the session token. Your display preferences are stored by the browser against the Paramount+ site rather than against the extension, so they outlive an uninstall; clearing that site's data in your browser settings removes them.
Who else sees it
- Cloudflare, our hosting and database provider, which runs the service and stores the account records described above.
- Resend, our email provider, which delivers verification, password-reset and notification emails to your address.
- Google, only if you use Google sign-in, and only to the extent of that sign-in.
We disclose personal data otherwise only where the law requires it, and we will tell you where we are permitted to.
We do not sell your personal data, and we do not share it for cross-context behavioural advertising.
How long we keep it
- Account information for as long as the account exists, and for a short period afterwards to complete deletion across backups - no more than 3 months.
- Records of the requests the extension makes for as long as we need them to operate, secure and debug the service.
- Missing-video reports for as long as they are useful to prioritise processing.
Your choices and rights
You can:
- Sign out at any time from the extension's popup, which deletes the session token from your device and ends the session on our side.
- Request a copy of your data, a correction, or deletion of your account by writing to contact@chapter.dativ.us. We will respond within 7 days.
- Uninstall the extension, which stops all data collection immediately and removes everything it stored locally. Uninstalling does not by itself delete your account - ask us if you want that too.
We extend these rights to everyone who uses the extension, wherever you live, rather than only to people covered by a particular law: access, correction, deletion, a portable copy of your data, and objection to or restriction of processing. You may also withdraw from the service entirely at any time by asking us to delete your account.
If you are in the European Economic Area or the United Kingdom, you additionally have the right to complain to your national data protection authority, and we are required to tell you the legal basis on which we process each thing:
| What | Legal basis |
|---|---|
| Email address, password, subscription status | Performance of our contract with you (Art. 6(1)(b)) - there is no account, and so no service, without them. |
| Video identifiers sent to fetch chapter markers | Performance of our contract with you (Art. 6(1)(b)) - this is the request that delivers the feature you installed the extension for. |
| Missing-video reports | Performance of our contract with you (Art. 6(1)(b)); you initiate each one. |
| Keeping records to run, secure and debug the service, and deciding in aggregate which events to process next | Our legitimate interests in operating and improving the service (Art. 6(1)(f)), balanced against the limited and non-sensitive nature of what we hold. |
| Verification, password-reset and account notification emails | Performance of our contract with you (Art. 6(1)(b)). We send no marketing email. |
Where your data goes. We are a United States company and our providers (Cloudflare, Resend) process data in the United States. Where personal data of EEA or UK users is transferred there, we rely on the transfer safeguards in our agreements with those providers, including the European Commission's Standard Contractual Clauses. You can ask us for details.
You are not subject to any automated decision-making that produces legal or similarly significant effects.
If you are a California resident: we do not sell your personal information and we do not share it for cross-context behavioural advertising, so there is nothing to opt out of. The rights listed at the top of this section are available to you.
Children
The extension is not directed to children under 13, and we do not knowingly collect their personal data. If you believe a child has given us data, write to contact@chapter.dativ.us and we will delete it.
Security
Traffic between the extension and our service is encrypted in transit. Chapter data requests carry a short-lived access token rather than your long-lived session token, and no part of the extension that runs inside a web page ever holds a credential. Passwords are stored hashed. No system is perfectly secure, but we treat account data as the sensitive thing it is.
Changes
If we change this policy we will update the date at the top, and for changes that materially affect you we will say so in the extension before they take effect.
Contact
contact@chapter.dativ.us - questions, requests, and complaints all land in the same place.