Disputes rarely start with a lie. They start with two versions.
Distribution moves fast. Work gets copied at scale, licenses change hands, and files travel over email and chat. When someone disagrees about what was made or agreed, the evidence is scattered across places you don't control.
Which version was agreed?
Terms get revised over email and chat. Months later each side remembers a different draft, and there's no neutral record of the one that counted.
Who had it first?
Showing when a track, video, or document existed usually means pointing to a timestamp that someone else controls and can edit.
Whose records count?
If the only proof sits in one company's database, it is only as trustworthy as that company, and only for as long as it stays in business.
OwnProof writes a fingerprint of the file or contract to a public blockchain. Change one character and the fingerprint no longer matches. Anyone can check.
How the proof works
A file of any size is reduced to a short fingerprint. The fingerprint and a pointer to the full file go on a public ledger, and the file itself is stored permanently.
Your file
Video, audio, or PDF, up to 5 GB.
SHA-256 fingerprint
Always 32 bytes, however large the file. The digest shown is an example.
Permanent archive (optional)
If you turn on archiving, the full file is preserved permanently on a decentralized storage network. If not, only the fingerprint is anchored, and the file stays with you.
On-chain record
The fingerprint, plus a pointer to the archive if you chose to keep one, timestamped by the network and impossible to edit afterwards.
Verify any time. Re-hash the file and compare it with the on-chain record. A match confirms the file is unchanged since it was registered.
Cryptographic fingerprint
Change a single bit of the original and the fingerprint changes completely, so tampering can't hide.
Permanent archive
Choose to preserve a master or final release permanently on a decentralized storage network, distributed globally and designed for long-term durability.
On-chain timestamp
A public, dated record of what was registered, held on a network no single company controls.
A paper trail versus a public record
OwnProof doesn't replace the traditional route. It fills the gap it leaves: fast, dated evidence you can point to at any time.
The usual paper trail
- Formal registration can take weeks or months to process.
- Timestamps live in email and platform accounts that someone else controls.
- Evidence is spread across inboxes, drives, and chat threads.
- Agreed terms are hard to tie back to a specific version of a file.
With OwnProof
- The fingerprint is recorded on a public blockchain within seconds.
- The timestamp is on a public ledger that no single company controls.
- Choose to permanently archive your master files on decentralized storage when it matters most.
- Anyone can re-hash the file and compare it with the record.
What this proves. OwnProof shows that a file existed, unchanged, on a particular date, and that it was registered from a particular account. It isn't a copyright registration and it isn't legal advice, so registering with your country's copyright office can still matter. Think of OwnProof as dated evidence that works alongside it.
What the prototype does today
A working path from an uploaded file to a locked, checkable agreement — upload, draft and review a contract, lock the terms, get counterparty sign-off, and verify any time after. You don't need to know how the underlying technology works to use it.
We'll walk you through the full flow step by step once you're in the pilot. A dashboard lists all your assets and contracts, each with a details page showing its lifecycle and status.
Permanent means permanent. If you switch on the permanent archive, that copy can't be deleted afterwards. Use sample files when testing that option in the prototype.
Who it's for
- Musicians and filmmakersIndependent artists who need simple, verifiable licensing and collaboration agreements without a legal department.
- Small labels and studiosTeams managing many assets and contracts who need a stronger audit trail than email and PDFs.
- Their counterpartiesLicensees, collaborators, and distributors who review and agree to terms tied to a specific registered asset.
What's still ahead
This is a living prototype. We're actively refining the signing flow, security, and onboarding based on what pilot users tell us — if something's missing or confusing, that's exactly what we want to hear about.
Try it and tell us what breaks
Private pilot — limited spots. We're onboarding testers by hand right now. Request access and we'll follow up with a personal link and a short walkthrough.
Please use sample files and test terms only once you're in.