Vimeo Alternative with AI Protection | sinima.

Host video with AI training opt-out signals, C2PA-format manifests with publicly verifiable signing coming soon, and ownership certificates per upload. Free…

C2PA-format manifests (with publicly verifiable signing coming soon), AI training opt-out signals, and an ownership certificate on every upload — so your work stays yours when crawlers come knocking.

Opt-out signals that crawlers actually read

sinima. emits standardized opt-out signals (TDM Reservation Protocol, robots.txt directives, X-Robots-Tag headers) on every public asset. Crawlers that respect the standards skip your work. The signals are signed, so removing them breaks the signature.

Proof your work was here first

When AI-generated knock-offs surface, the question is always "who can prove they made it first?". sinima. answers it with a publicly verifiable ownership certificate timestamped to your upload — independent of any platform.

Frequently asked questions

Does sinima. block AI scrapers?

We emit the strongest standardized opt-out signals available — TDM Reservation Protocol, robots.txt, X-Robots-Tag and ai.txt — on every page that serves your work, and known AI training crawlers are disallowed there by name. Signals are not a firewall: a crawler that ignores standards can still reach a public page. What you get is a fingerprint, a timestamped certificate and a documented reservation it ignored, which is what a takedown or a claim actually runs on.

Do you train any AI on my content?

No. sinima. never uses customer content to train models. Your catalogue is private by default.

What is an HNST certificate?

A cryptographic ownership record tied to your account and timestamped to the moment of upload. Each certificate has a public verify URL you can share with anyone.

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