How to Prove You Own Your Footage | sinima.

Mint a timestamped ownership certificate per video upload. Publicly verifiable, court-friendly, free to start with sinima.

A timestamped, signed, publicly verifiable record — minted the second you upload.

The three things courts and buyers want

1) When was the work created? 2) Who made it? 3) Has the file been altered since? sinima. answers all three on every upload — a cryptographic fingerprint, a verified-account timestamp, and a tamper-evident signature.

Frequently asked questions

Is an HNST certificate legally meaningful?

It is admissible evidence of "earliest known existence tied to a verified party" — the same standard used for blockchain timestamps and registered C2PA manifests. It is not a substitute for copyright registration, but it is the strongest first-line proof available.

Can I share the certificate publicly?

Yes. Each certificate has a public verify URL you can paste anywhere.

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